Question

Q.1)A 2 kg block Slides on a horizontal surface with a speed of 4 mis. It strikes an uncompressed
spring and compresses it till the block is motionless. The kinetic frictional force is 15 N and
spring constant 10,000 N/m. The spring compress by?
Q.2)An engine pumps water continuously through a hose .Water leaves the hose with a velocity V
and m is mass per unit length of the water Jet. What is the rate at which K.E is imparted to water?
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Answer 1

Answer:

A 2 kg block slides on a horizontal floor with a speed of 4 m/s. It strikes a uncompressed spring, and compresses it till the block is motionless. The kinetic friction force is 15 N and spring constant is 10,000 N/m. The spring compresses by

Option 1)

8.5 cm

Option 2)

5.5 cm

Option 3)

2.5 cm

Option 4)

11.0 cm

Explanation:

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