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Author Question: During a collision with a wall, the velocity of a 0.200-kg ball changes from 20.0 m/s toward the ... (Read 73 times)

storky111

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on: Jul 29, 2018
During a collision with a wall, the velocity of a 0.200-kg ball changes from 20.0 m/s toward the wall to 12.0 m/s away from the wall. If the time the ball was in contact with the wall was 60.
 
  0 ms, what was the magnitude of the average force applied to the ball? A) 40.0 N
  B) 107 N
  C) 16.7 N
  D) 26.7 N
  E) 13.3 N

Question 2

A car moving at 10.0 m/s encounters a depression in the road that has a circular cross-section with a radius of 30.0 m. What is the normal force exerted by the seat of the car on a 60.0-kg passenger when the car is at the bottom of the depression?
 
  A) 200 N
  B) 389 N
  C) 789 N
  D) 489 N
  E) 589 N


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amit

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Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

C


storky111

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Reply #2 on: Jul 29, 2018
Thank you!


amit

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Reply #3 on: Jul 29, 2018
Always glad to help...


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