Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P is directed to the left but the direction of Q is unknown; it could either be directed to the right or to the left. The object moves along the x-axis. Assume there is no friction between the object and the table. Here P = -8.4 N and the mass of the block is 3.5 kg. (a) What is the magnitudeand direction of Q (in N) when the block moves with constant velocity? (Indicate the direction with the sign of your answer.) (b) What is the magnitude and direction of Q (in N) when the acceleration of the block is +5.8 m/s. (Indicate the direction with the sign of your answer.) N (c) Find the magnitude and direction of Q (in N) when the acceleration of the block is -5.8 m/s. (Indicate the direction with the sign of your answer.)

Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P is directed to the left but the direction of Q is unknown; it could either be directed to the right or to the left. The object moves along the x-axis. Assume there is no friction between the object and the table. Here P = -8.4 N and the mass of the block is 3.5 kg. (a) What is the magnitudeand direction of Q (in N) when the block moves with constant velocity? (Indicate the direction with the sign of your answer.) (b) What is the magnitude and direction of Q (in N) when the acceleration of the block is +5.8 m/s. (Indicate the direction with the sign of your answer.) N (c) Find the magnitude and direction of Q (in N) when the acceleration of the block is -5.8 m/s. (Indicate the direction with the sign of your answer.)

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Vectors

Section: Chapter Questions

Problem 7P: A force F1 of magnitude 6.00 units acts on an object at the origin in a direction = 30.0 above the...

See similar textbooks

Similar questions

In a tug-of-war game on one campus, 15 students pull on a rope at both ends in an effort to displace the central knot to one side or the other. Two students pull with force 196 N each to the light, four students pull with force 98 N each to the left, five students pull with force 62 N each to the left, three students pull with force 150 N each to the right, and one student pulls with force 250 N to the left. Assuming the positive direction to the tight, express the net pull on the knot in terms of the unit vector. How big is the net pull on the knot? In what direction?
If the vector components of the position of a particle moving in the xy plane as a function of time are x(t)=(2.5ms2)t2i and y(t)=(5.0ms3)t3j, when is the angle between the net force on the particle and the x axis equal to 45?
Two horizontal forces, P and Q, are acting on a block that is placed on a table. We know that P is directed to the left but the direction of Q is unknown; it could either be directed to the right or to the left. The object moves along the x-axis. Assume there is no friction between the object and the table. Here P = −4.9 N and the mass of the block is 4.4 kg What is the magnitude and direction of Q (in N) when the block moves with constant velocity? What is the magnitude and direction of Q (in N) when the acceleration of the block is +6.3 m/s2 Find the magnitude and direction of Q(in N) when the acceleration of the block is −6.3 m/s2
Figure shows a block of mass m resting on a 20° slope. The block has coefficients of friction μ = 0.81 and k = 0.46 with the surface. It is connected via a massless string over a massless, frictionless pulley to a hanging block of mass 2.0 kg. (Figure 1) You may want to review (Page). For help with math skills, you may want to review: Vector Components Figure m 20⁰ 1 of 1 2 kg Part A What is the minimum mass m that will stick and not slip? Express your answer to three significant figures and include the appropriate units. m = Submit Part B a = Submit O μA Value Request Answer If this minimum mass is nudged ever so slightly, it will start being pulled up the incline. What acceleration will it have? Express your answer to three significant figures and include the appropriate units. μÅ Provide Feedback Value kg Request Answer ? 2 m/s² ?
Two horizontal forces, p and o are acting on a block that is placed on a table. We know that p is directed to the left but the direction of o is unknown; it could either be directed to the right or to the left. The object moves along the x-axis. Assume there is no friction between the object and the table. Here P = -2.1 N and the mass of the block is 3.5 kg. (ə) What is the magnitudeand direction of (in N) when the block moves with constant velocity? (Indicate the direction with the sign of your answer.) N (b) What is the magnitude and direction of (in N) when the acceleration of the block is +4.4 m/s2. (Indicate the direction with the sign of your answer.) N (e) Find the magnitude and direction of (in N) when the acceleration of the block is -4.4 m/s2. (Indicate the direction with the sign of your answer.)
A particle is subjected to the action of two forces : F1 = 41+ 3 + 6 k [ kN ] and F2 = 51-61 -5k [ kN ] . The coordinate direction angle of the resultant force with the X - axis is
There are two forces on the 2.00 kg box in the overhead view of the figure below, but only one is shown. For F1=20.0N, a= 12.0 m/s², and 0 = 30°, find (a) the second force in unit-vector notation (b) as a magnitude and an angle relative to the positive direction of the x axis.
A force P = 977 kN whose line of action passes through points A(1, 2, 3) and B(7, 8, 6). Determine the x-component of force P in kN. Write the numerical value only and in 2 decimal places.
Thank you
In the figure, a force of magnitude 11.8 N is applied to a block of mass m2= 0.6 kg. The force is directed up an incline plane with an angle of 35.7°. The box is connected by a cord to another block of mass m1= 2.8 kg on the floor. The floor, plane, and pulley are frictionless, and the masses of the pulley and cord are negligible. What is the tension in the cord in N? m2 m1 Answer: Ali launches amarble (mass of m ka) in his marhle launcher with sneed of v m/s The launcher pLushes the pe here to search
The figure shows an overhead view of a 0.0260 kg lemon half and two of the three horizontal forces that act on it as it is on a frictionless table. Force F, has a magnitude of 6.00 N and is at 0, = 25.0°. Force F2 has a magnitude of 7.00 N and is at 6, = 26.0°. In unit-vector notation, what is the third force if the lemon half (a) is stationary, (b) has the constant velocity v = (12.0i – 12.0j) m/s, and (c) has the V = (14.0ti – 14.0fj) m/s², where t is time? -
A man is stranded on a raft (mass of man and raft = 1300 kg), as shown in the figure. By paddling, he causes an average force ?⃗ of 17 N to be applied to the raft in a direction due east (the +x direction). The wind also exerts a force ? on the raft. This force has a magnitude of 15 N and points 67° north of east. Ignoring any resistance from the water, find the x and y components of the raft’s acceleration.