A variable mass body with an initial mass of 10 kg is moving with a ve – McqOptions

MCQOPTIONS

1.	A variable mass body with an initial mass of 10 kg is moving with a velocity of 7 m/s initially, after some time the velocity increases to 14 m/s, what is the new mass if the body is moving in the absence of any external force?
A.	2.5 Kg
B.	5 Kg
C.	7.5 Kg
D.	10 Kg
Answer» C. 7.5 Kg

Discussion

No Comment Found

Related MCQs

A variable mass body with an initial mass of 10 kg is moving with a velocity of 7 m/s initially, after some time the velocity increases to 14 m/s, what is the new mass if the body is moving in the absence of any external force?
When a body collides with a wall or the ground, what assumption do we make?
Two bodies are accelerating towards each other. After sometime they collide. Which one of the following statements is true about the system?
What is the plural of the word momentum ?
Two bodies of masses 2 Kg and 7 Kg are moving with velocities of 2 m/s and 7 m/s respectively. What is the total momentum of the system in Kg-m/s?
A variable mass body with an initial mass of 5 kg is moving with a velocity of 5 m/s initially, after some time the velocity increases to 10 m/s, what is the new mass if the body is moving in the absence of any external force?
A ball is moving with a constant velocity. After some time, it collides with a wall. Which one of the following remains conserved except momentum?
Two bodies moving with constant velocities collide with each other. Which of the following quantities remain conserved?