Question

a shopper in a supermarket pushes a loaded cart with a horizontal force of 15 N. if the cart has a mass of 30 kg, how far will it move in 3 seconds if it started from rest

Answer 1

The distance covered by the cart is 2.25 meters.

Step-by-step explanation:

It is given that,

Mass of the cart, m = 30 kg

Horizontal force, F = 15 N

Let d is the distance covered by the cart in 3 seconds if it started from rest. If a is the acceleration of the cart. Using second law of motion as :

`F=ma`

`a=(F)/(m)`

`a=(15\ N)/(30\ kg)`

`a=0.5\ m/s^2`

The distance covered by the cart is given by :

`d=ut+(1)/(2)at^2`

Here, u = 0

`d=(1)/(2)* 0.5* (3)^2`

d = 2.25 meters

So, the distance covered by the cart is 2.25 meters. Hence, this is the required solution.