19. Two motorcycles are involved in a head on collision. Motorcycle A has a mass of 20o kg and was travelling at120 km/h south. Motorcycle B has a mass of 250 kg and was travelling north at 100 km/hr. A and B are about tocollide. Calculate the momentum of the system before the collision takes place.A. -279 kg m/sВ.33.33 kg m/sC. 27. 78 kg m/sD. 279 kg m/s

Given : m1 = 200 kg v1 = -120 km/hr = -120(1000/3600) = -33.33 m/s (negative because of south…

Answered: 19. Two motorcycles are involved in a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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2. A 0.45-kg ball, moving east with a speed of 4.90 m/s, has a head-on collision with a 0.900-kg ball initially at rest. a. Draw a picture of the problem and write all the given quantities. b. Assuming a perfectly elastic collision, what will be the speed and direction of each object after the collision?
3. Two skaters are facing each other with their hands touching. The two skaters are at rest. After they push apart the girl has a velocity of 3.5 m/s and mass 45 kg. The boy has a velocity of 2 m/s. What is the boy's mass? Before After
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A rubber ball and a lump of clay have equal mass. They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The clay sticks to the wall. Which one of these objects experiences the greater momentum change? Select one: a. the ball b. the clay c. Both of them experience the same non-zero momentum change. d. Both of them experience zero momentum change.
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1a. A trolley having a total mass of 35 kg is moving with a velocity of 22 m/s. What is the momentum of the trolley? 2a. A trolley having a total mass of 35 kg is moving with a velocity of 36 km/hour. What is the momentum of the trolley? 3a. A car travels 36 km West in 30 minutes. i. What is the velocity of the car? ii. If the car further travels 18 km in 20 minutes, what is the AVERAGE speed of the car? iii. What is the total distance travelled by the car?
1. A0.12-kg ball is moving at 6 m's when it is hit by a bat, causing it to reverse direction and have a specd of 14 m/s. What is the magnitude of the change in the momentum of the ball? a. 0.39 kg m's b. 0.42 kg-m's c. 1.3 kg-m's d. 2.4 kg-m's 2. Alex throws a 0.15-kg rubber ball down onto the floor. The ball's speed just before impact is 6.5 m/s, and just after is 3.5 m's. What is the magnitude of the change in the ball's momentum? a. 0.09 kg m/s b. 1.5 kg-m/s c. 4.3 kg-m/s d. 126 kg m/s
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Q 1 please
Two teenagers are ice skating. Steve has a mass of 65.0 kg and has an initial velocity of 4.14 m/s (West). Betty has a mass of 45.0 kg and has an initial velocity of 0.650 m/ (East). They collide and grab on to each other when that happens. What is their combined velocity after the collision? S Select one: a. b. C. d. 2.18 m/s West 2.18 m/s East 2.71 m/s East 2.71 m/s West

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