Question

terry physics pushes a 75kg lab cart so that is accelerates from rest with a velocity of 4.4m/s in 3.1 secounds. what is the force that terry pushes this cart to achieve this acceleration?

Answer 1

106.5N

Explanation:

Given parameters:

Mass of cart = 75kg

Velocity = 4.4m/s

time taken = 3.1s

Unknown:

Force = ?

Solution:

To solve this problem, we are going to apply newton's second law of motion. The law states that "the acceleration of a body is directly proportional to the force on the body and inversely proportional to the mass".

      F = m  x   a

F = force on body

m = mass of body

a = acceleration of the body

 But we know that acceleration is the change in velocity with time of a body;

     a  = $\frac{change in velocity }{time}$

  F = m x $\frac{V}{t}$

V is the velocity

t is the time taken

   F = $\frac{75 x 4.4}{3.1}$   = 106.5N

learn more:

Newton's law brainly.com/question/11411375

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