Ask Question
24 December, 07:33

You give a shopping cart a shove down the aisle. The cart is full of groceries and has a mass of 18 kg. The cart accelerates at a rate of 3 m/s2. How much force did you exert on the cart?

+2
Answers (2)
  1. 24 December, 09:08
    0
    Force = (mass x acceleration) = 18 x 3, = 54N.
  2. 24 December, 09:27
    0
    Newton's 2nd law: Force = (mass) x (acceleration).

    While the cart is accelerating at 3 m/s², you must be pushing it

    with (18 kg) x (3 m/s²) = 54 newtons of force.

    As soon as you stop pushing, it stops accelerating.
Know the Answer?