speed = distance / time
= 2πr*No. of rotations / t
= 2π(0.5) *100/ 50
1. That is due to the mechanical rotational energy stored in it
2.Fricton and lose of energy in addition to no more energy supplied..
• In the given question information given about an electric fan rotating at 5 rev/sec is switched off. It comes to rest in 10 sec.
• We have to find uniform deceleration.
• According to given question :
Revolution/sec = 5 rev/sec
time taken to stop = 10 sec
A body in motion posseses a property called inertia (inertia is a property due to which an object continues it's state of motion after application of a force) also it stops after some time cause theres loss of energy (due to friction and air resistance) and theres no external force acting on it (after switch is off)
mark me as the brainliest
Hope this was helpful
decc. = 3/18 2pi per sec. sq.
angle made = 3× 2 pi × 18 - 1/2 (3/18) 2pi 18×18
rev made= 3×18 - 27 = 54-27 = 27 rev
it's such a great app.
language u have written ? ?
don't able to understand