We know, P = F . ΔV
P = 185 * 2.39 = 442.15 watt
Answer with Explanation:
We are given that mass of block=0.0600 kg
Initial speed of block=0.63 m/s
Distance of block from the hole when the block is revolved=0.47 m
Final speed=3.29 m/s
Distance of block from the hole when the block is revolved=
a.We have to find the tension in the cord in the original situation when the block has speed =

Because tension is equal to centripetal force
Substitute the values

b.

c.Work don=Final K.E-Initial K.E



Answer: friction reduces the speed during motion
Explanation:
The more the friction, the lesser the speed during motion
<span>Humans might hold a picnic outside because of a lack of precipitation.</span>