Answer:
F = 98.67 N
Explanation:
Given that,
The initial velocity of the sled, u = 1.6 m/s
The mass of the child and the sled is 37 kg
The sled stops pushing on it for 0.60s in a direction opposite to its motion.
We need to find the magnitude of the average force you need to apply to stop the sled.
Impulse = change in momentum
We have, v = 0
[tex]Ft=m(v-u)\\\\F=\dfrac{-mu}{t}\\\\F=\dfrac{-37\times 1.6}{0.6}\\\\F=-98.67\ N[/tex]
So, the magnitude of the average force is 98.67 N.
