A force acting on a body causes a change in the momentum of the body from 12kg ms-1 to 16kg ms-1 in 0.2s. calculate the magnitude of the force
Question 1 Report
A force acting on a body causes a change in the momentum of the body from 12kg ms-1 to 16kg ms-1 in 0.2s. calculate the magnitude of the force
Answer Details
The change in momentum of a body is given by the formula:
Δp = mΔv
where Δp is the change in momentum, m is the mass of the body, and Δv is the change in velocity.
In this case, the change in momentum is:
Δp = 16 kg ms^-1 - 12 kg ms^-1 = 4 kg ms^-1
The time taken for the change in momentum is:
Δt = 0.2 s
Therefore, the magnitude of the force is given by:
F = Δp/Δt = (4 kg ms^-1)/(0.2 s) = 20 N
So, the correct option is: 20.0N.
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