immediately (perception time is 2 seconds) and begins slowing the vehicle at 10m/. Find the distance from the stopping point to the wall. Ans, 10.28m
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- 1. During a braking test, a car is brought to rest beginning from an initial speed of 60 mi/h in a distance of 120 ft. With the same constant deceleration, what would be the stopping distance "s" from an initial speed of 80 mi/h? Ans. 213 ft23. A company estimates that the marginal cost (in dollars per item) of producing x items is 1.92 – 0.002.x. If the cost of producing one item is $562, find the cost of producing 100 items. 24. A car is traveling at 50 mi/h when the brakes are fully applied, producing a constant deceleration of 22 ft/s². What is the distance traveled before the car comes to a stop? 25. A car is traveling at 100 km/h when the driver sees an accident 80 m ahead and slams on the brakes. What constant deceleration is required to stop the car in time to avoid a pileup?5. A soccer player kicks a rock horizontally off a 50.0-m-high cliff into a pool of water. If the player hears the sound of the splash 4.00 s later, what was the initial speed aiven to the rock? Assume the speed of sound in air is 343 m/s.
- A truck travels with a speed of 59 mi/h. This speed in S.I. units is (Given 1 mile = 1.609 km) O a. 212.40 m/s O b. 26.37 m/s O c. 132.01 m/s O d. 16.39 m/sB. Solve the problems correctly. Present all solutions. 3. all Upiect ct: 5? 4. The brakes of a car moving at 14 m/s are applied, and the car comes to a stop in 4s. How far does the car go, while it is slowing down from 14 to 10 m/s? 5. The brakes of a car whose initial velocity is 30 m/s are applied, and the car receives an acceleration of -2 m/s². How far will it have gone (a) when its velocity has decreased to 15 m/s and (b) when it comes to a stop? 6. A car starts from rest and accelerates 10 m/s². (a) How far will it travel after 5 seconds? (b) How far will it travel during the sixth second?6. A sports car must achieve a velocity of 100m.s after passing the entry tollgate of an expressway. If the driver can do it after travelling 200m, what must his car's acceleration?
- 2. A speeding car is traveling at a constant 30.0 m/s when it passes a stationary police car. If the police car delays its motion for 1.00 s before starting, what must the constant acceleration of the police car be to catch the speeding car after the police car travels a distance of 300. m?3. A squirrel running at constant acceleration between two points 60.0 m apart in 4.00 seconds. It speed as it passes the 2nd point is 17.0 m/s. a) What is the speed at the first point. b) find acceleration5. A. How long does it take Viserion with his Queen Danaerys to take off if it needs toreach a speed on the ground of 350 km/h over a distance of 600m. (assume Viserionwith Queen Danaerys starts from rest)? B. What is the acceleration of Viserion with Queen Danaerys after 600m?
- Breanne is waiting at a stoplight. When it finally turns green, in she accelerates from rest at a rate of a 6.00 m/s? for a time sT period of 4.10 seconds. Inemngiaes srt elelgmos The displacement (d) of Breanne's car during this time period. n: ac celeratron at rate omis z0 f6 4. Tiebtboivatsgaert ni how uoy lls worle 3x(4.1)= 50.43uba lsn %3D ohndua ineringleaA yone pilsoube Isnenep erli ni emeldo1q ovit erlt to doss ol beeu ed lliw ohdun eirlT einioq a rinow al meldorq rlas3 etnlog a Idong er to gnibnstaneb nelleoxe ns 2eienlenomeb Inebuie A 10 kg block rests on a table,ose listeb ni priworla is the coefficient of static friction. va69 bne begnETIe 48.NIf a Ford Mustang can stop from a velocity of +60mph in 3.00 seconds, what is its acceleration? SYW.A Nissan Almera travels a minimum time of 53.45 seconds with a totalof 1450m. It starts from rest and stops at his destination. If the acceleration of theAlmera is equal to its deceleration before stopping at a rate of 2.37 ™ 52. determine: a. the maximum velocity (in m/s) b. the total time it travels at maximum velocity