Question

A little boy pushes a wagon with his dog in it. The mass of the dog and wagon together is 45 kg. The wagon accelerates at 0.85 m/s2. What force is the boy pulling with?

Answer 1

Mass of Wagon and Dog together : 45 KG

Acceleration is at the speed of 0.85m / s2

F ( Force ) = Mass x Acceleration

0.85 x 45 = 38.25

= 38.5 N

Answer 2

A little boy pushes a wagon with his dog in it. The mass of the dog and wagon together is 45 kg. The wagon accelerates at 0.85 m/s².

Now, force is calculated by the product of mass and acceleration.

$F = m \times a$

$\implies \: F = 45 \times 0.85$

$\implies \: F =38.25 \: kg \: m {s}^{ - 2}$

$\implies \: F =38.25 \: N$

So, the boy applies a force of 38.25 N.