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Krisha Prasad

Asked: October 27, 2020In: Class 9

An object of mass 100 kg is accelerated uniformly from a velocity of 5 m s–1 to 8 m s–1 in 6 s. Calculate the initial and final momentum of the object. Also, find the magnitude of the force exerted on the object.

NCERT Solutions for Class 9 Science Chapter 9 Force and Laws of Motion NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-129 Questions No-16

Krisha Prasad

Asked: October 27, 2020In: Class 9

How much momentum will a dumb-bell of mass 10 kg transfer to the floor if it falls from a height of 80 cm? Take its downward acceleration to be 10 m s–2.

NCERT Solutions for Class 9 Science Chapter 9 Force and Laws of Motion NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-129 Questions No-18

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