ACTIVITY 3
1. A car accelerates uniformly from a velocity,
u at town P to to town Q in time, t. If the acceleration of the car was “a” and
the distance between two towns is “s”, show that $$s={ut}+{1\over 2}{a t^2}$$
2. A body accelerates from a velocity of
15 m/s at 2 m/s2 to a distance of 54m. calculate the;
(a) The final velocity
(b) The time taken for the body to travel
3. An object travelling
at 15 m/s accelerates uniformly at 2.4 m/s2 for 12 seconds.
(a) Calculate the final velocity
(b) How far does it travel?
4. A football was kicked into
hands of a goal keeper at 4m/s. The goal keeper stopped the ball at 2 m/s2.
If the mass of a ball is 0.5kg, calculate the time it takes to stop the ball
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