Question

2. A boy pushes forward a cart of groceries with a total mass of 45.0 kg. What is the

Answer 1

Answer:

$a=1.46\ m/s^2$

Explanation:

It is given that,

Mass of the cart, m = 45 kg

Net force acting on the cart, F = 66 N

Let a is the acceleration of the cart with which it is pushed. It can be calculated using Newton's second law of motion as :

F = m a

$a=\dfrac{F}{m}$

$a=\dfrac{66\ N}{45\ kg}$

$a=1.46\ m/s^2$

So, the acceleration of the cart is $1.46\ m/s^2$. Hence, this is the required solution.

Answer 2

Answer:

A aceleração do carrinho é de, aproximadamente, 1,46 m/s².

Explanation:

F=ma

F: force

m: mass

a: aceleration

66 = 45a

a=66/45= 22/15 ≅ 1,4666 m/s²