Question

find the kinetic energy of an object of mass 5kg moving at a speed of 15ms–¹.​

Answer 1

Answer:

Speed of moving mass v=1.5 m/s

Given : k=50 N/m and m=0.5kg

The kinetic energy of the moving mass will be converted into potential energy in the spring when the spring is at maximum compression x

o

.

∴

2

1

mv

2

=

2

1

kx

o

2

Or x

o

=

k

m

v

⟹ x

o

=

50

0.5

×1.5=0.15 m