A shopper in a supermarket pushes a loaded cart with a horizontal force of 8 Newton. The cart has a mass of 35 kilogram.
(a) Find how far will it move in 5.0 second, starting from rest? (Ignore friction.).
(b) Find how far will it move in 5.0 second if the shopper places his 30 Newton child in the cart before he begins to push it?