COMMUNICATION 14 MARKS
1. Draw a free-body diagram for the following scenarios, indicating an acceleration arrow where
necessary:
a) Several seconds after being thrown, a football is moving upwards and rightwards towards the peak of its
trajectory. Ignore air resistance.

b) The brakes are applied to a rightward moving car and it is skidding to eventually stop.

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?