Answer:
The work done by the shopping cart is 180 J
Explanation:
We have,
Mass of a shopping cart is 24 kg
Initial speed of cart is 1 m/s
Final speed of a cart is 4 m/s
It is required to find the work done by the shopping cart. The work done by an object is also equal to the change in its kinetic energy as per work -energy theorem. It means,
[tex]W=\dfrac{1}{2}m(v^2-u^2)[/tex]
m = 24 kg
u = 1 m/s and v = 4 m/s
[tex]W=\dfrac{1}{2}\times 24\times (4^2-1^2)\\\\W=180\ J[/tex]
So, the work done by the shopping cart is 180 J.
