Question

car initially at rest starts with a uniform acceleration and gains a velocity of 20 ms in 4s. The
displacement of the car is
a) 40 m
b) 80 m
c) 120 m
d) 160 m​

Answer 1

a) 40 m

The answer is given step by step.

This answer can be derived by the Third law of motion.

s = u * t + 1/2 * a * t ^ 2

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