A car moving at 10.0 m/s crashes into a barrier and stops in 0.050 s. There is a 20.0 kg child in the car. Assume that t
Posted: Mon Jul 18, 2022 6:32 am
A car moving at 10.0 m/s crashes into a barrier and stops in0.050 s. There is a 20.0 kg child in the car. Assume that thechild's velocity is changed by the same amount as that of the car,and in the same time period.
a) What is the impulse needed to stop the child?
b) what is the average force on the child?
C) What is the approximate mass of an object whose weight equalsthe force in part b?
D) could you lift such weight with your arm? E) Why is it advisable to use proper restraining seat rather thanto hold a child on your lap?
a) What is the impulse needed to stop the child?
b) what is the average force on the child?
C) What is the approximate mass of an object whose weight equalsthe force in part b?
D) could you lift such weight with your arm? E) Why is it advisable to use proper restraining seat rather thanto hold a child on your lap?