SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

 

A shell explodes and many pieces fly off in different directions. Which of the following is conserved?

a)

Kinetic energy

b)

Momentum

c)

Neither momentum nor KE

d)

Momentum and KE


Question ID - 100271 :-

 

A shell explodes and many pieces fly off in different directions. Which of the following is conserved?

a)

Kinetic energy

b)

Momentum

c)

Neither momentum nor KE

d)

Momentum and KE

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

Because during explosion of a shell,  hence according to law of conservation of momentum =constant



Next Question :

A conical pendulum consists of a mass  suspended from a strong sling of length . The mass executes a circle of radius  in a horizontal plane with speed . At time  The mass is at position and has  velocity. At time , the angular momemtum vector of mass  about the point from which the string passes on the ceiling is

a)

b)

c)

d)


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