3. A catapult launches a cat from ground level to a target located on the ground. The cat leaves the catapult moving at 100 km/h at an angle of 40°. a) What is the cat's velocity half-way through the trajectory (size and direction)? b) What is the cat's velocity at impact (size and direction)? c) How long is the cat in the air for? d) What is the maximum height? e) What is the range of the cat? tima the cat is

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Chapter1: Introduction: The Nature Of Science And Physics
Section: Chapter Questions
Problem 2PE: A car is traveling at a speed of 33 m/s. (a) What is its speed in kilometers per hour? (b) Is it...
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1. Kyle is in his car traveling at a constant speed of 150 km/h down the road. He passes a police
car that was stationary at the side of the road. He sees the radar reading and immediately begins
accelerating (8 m/s/s) in order to catch the delinquent teenager. How long and how far down
the road does he catch Kyle?
2. A train is travelling at 23 m/s [E] when it enters a curved portion of the track and experiences
an average acceleration of 0.14 m/s [S] for 95 s. Determine the velocity of the trains after this
acceleration.
Projectile Motion
3. A catapult launches a cat from ground level to a target located on the ground. The cat leaves the
catapult moving at 100 km/h at an angle of 40°.
a) What is the cat's velocity half-way through the trajectory (size and direction)?
b) What is the cat's velocity at impact (size and direction)?
c) How long is the cat in the air for?
d) What is the maximum height?
e) What is the range of the cat?
4. After landing safely on the target the cat tries another projectile apparatus. This time the cat is
shot out of a cannon over a 30 m high wall. The cat is launched at an angle of 55°0 and can be
assumed to be at ground level during launch. With what speed (in km/h) does it have to be
launched to make it approximately 5 m over the wall if the wall is 250 m from the cannon?
Dynamics
5. Three blocks of masses m,=26kg, m2-38kg, and m3-41kg, are connected by two strings over
two pulleys as shown in the figure.
a) Determine the acceleration of the blocks.
b) Determine the tension in each of the strings.
m2
Transcribed Image Text:ns.pdf 1 / 5 SK ExiLEullsgreen A 100% 1. Kyle is in his car traveling at a constant speed of 150 km/h down the road. He passes a police car that was stationary at the side of the road. He sees the radar reading and immediately begins accelerating (8 m/s/s) in order to catch the delinquent teenager. How long and how far down the road does he catch Kyle? 2. A train is travelling at 23 m/s [E] when it enters a curved portion of the track and experiences an average acceleration of 0.14 m/s [S] for 95 s. Determine the velocity of the trains after this acceleration. Projectile Motion 3. A catapult launches a cat from ground level to a target located on the ground. The cat leaves the catapult moving at 100 km/h at an angle of 40°. a) What is the cat's velocity half-way through the trajectory (size and direction)? b) What is the cat's velocity at impact (size and direction)? c) How long is the cat in the air for? d) What is the maximum height? e) What is the range of the cat? 4. After landing safely on the target the cat tries another projectile apparatus. This time the cat is shot out of a cannon over a 30 m high wall. The cat is launched at an angle of 55°0 and can be assumed to be at ground level during launch. With what speed (in km/h) does it have to be launched to make it approximately 5 m over the wall if the wall is 250 m from the cannon? Dynamics 5. Three blocks of masses m,=26kg, m2-38kg, and m3-41kg, are connected by two strings over two pulleys as shown in the figure. a) Determine the acceleration of the blocks. b) Determine the tension in each of the strings. m2
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