Question

starting from rest a car is moving with uniform acceleration imagine what happens to the displacement covered if time of travel is doubled ​

Answer 1

Given :  starting from rest a car is moving with uniform acceleration

To Find : what happens to the displacement covered if time of travel is doubled? ​

Solution:

S = ut + (1/2)at²

S = Displacement

u = initial velocity

a = acceleration

t = time

Let say t = T

u = 0 as start from rest

S =0 + (1/2)aT²

=> S =(1/2)aT²

if time is doubled

t = 2T

=> S = 0 + (1/2)a(2T)²

=> S = 4((1/2)aT²)

Displacement will be 4 times if time is doubled

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