An object of mass m is thrown with a velocity u ms-1 at 60 degrees to the horizontal. The momentum of the object when it was thrown was 20kgms-1. Find the momentum at the highest point of its journey.
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Explanation:
Gravitational force is acting on the body moving upwards i.e. F=mg
Rate of change of momentum of the body is equal to the force acting it.
⟹
dt/dp
=F=mg
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