Question

momentum of a body changes from 40kgm/s to -70kgm/s in 10 second.calculate the force acting on the body?​

Answer 1

Answer:

5744673(37__(47_+3(39

Answer 2

Answer:

F = -11N

Explanation:

According to newton 2nd law of motion the rate of change in momentum is directly proportional to the applied force.

so,

$force \: = k \: \times \: rate \: of \: change \: inmomentum$

here, k = 1( constant )

$force = \: \frac{mv \: - \: mu}{t} \\ \\ f = \frac{ - 70 - 40}{10} \\ \\ f \: = \frac{ - 110}{10} = - 11$