- #1
miles davis
- 2
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Homework Statement
Hello, new to the physics world, I am trying to self-teach through reading textbooks, videos etc and application.
I came across a problem I do not know how to begin to answer.
A dodgem car of mass 200g is driven due south into a rigid barrier at an initial speed of 5.0 ms^-1. The dodgem rebounds at a speed of 2.0m^-1. It is in contact with the barrier for 0.2s. Calculate:
a) the average acceleration of the car during its interaction with the barrier
b) the average net force applied to the car during its interaction with the barrier.
Homework Equations
I am unsure which equations to utilise: F=ma, a= Delta v/ Delta t or kinematic equations
The Attempt at a Solution
a) a = (-2-5)/(0.2) but for barrier unsure?
b) Fnet= 0.2 X unknown acceleration [/B]