Question

A car travelling initially at 7.0 m/s accelerates uniformly at the rate of +0.80m/s. What is its velocity after it accelerates for 125m?

Answer 1

C

Step-by-step explanation:

Given;

Initial velocity, u = +7.0 m/s

accelerates, a = +0.80 m/s²

distance, s = 245 m

One of equation of motions is given by;



where,

v is the final velocity in m/s

u is the initial velocity in m/s

a is the acceleration in m/s²

s is the distance in m

(a) The velocity of the car at end of the acceleration will be when it covers 245 m











(b) Velocity after the car accelerates for 125 m











(c) Velocity after the car accelerates for 67 m