Question

Calculate the acceleration of a body which starts from rest and travel 87.5 m 5 seconds

Answer 1

Let acceleration = a
Initial Velocity = u = 0 m/s
Distance Covered = s = 87.5 m
Time taken = t = 5 sec



We are given u, s and t. We have to find a. We will use the equation of motion relating these quantities:

$s = ut + \frac{1}{2}at^2 \\ \\ \\ \implies 87.5 =  0 + \frac{1}{2}a(5)^2 \\ \\ \\ \implies \frac{25}{2}a = 87.5 \\ \\ \\ \implies a = \frac{87.5 \times 2}{25} \\ \\ \\ \implies \boxed{a = 7 \, \, m/s^2}$


Thus, the acceleration is 7 $m/s^2$ .


Hope it helps
Purva
Brainly Community