Question

A body moves from rest with a constant acceleration of 5 m/s2 its instantaneous speed at end of 10 sec is

Answer 1

The answer is 50m/s.

Answer 2

Answer: The instantaneous speed is 50 m/s.

Explanation:

Given that,

Initial velocity u = 0

Acceleration $a = 5 m/s^{2}$

Time t = 10 sec

The instantaneous speed define the speed of the body is continuously speed.

Using equation of motion

$v = u +at$

$v = 0+5\times 10$

$v = 50m/s$

Hence, the instantaneous speed is 50 m/s.