Question

3. An object 5kg is thrown vertically upwards with an initial velocity 49 m/s. What is its
momentum at the highest point?
a. 245 kgm/s
b. O kgm/s
c. 49kgm/s
d. 9.8 kgm/s​

Answer 1

If we read the question clearly, it is asked to tell the momentum at the highest point travelled by the object, but when the object starts moving upward, the gravity also starts providing negative acceleration, and at the highest point at which the object will start coming back, it's velocity will be 0 m/s.

Mass = 5 kg

Velocity to be taken = 0 m/s

Momentum = Mass×Velocity

Momentum = 5×0

Momentum = 0 kgm/s