What is the linear speed of the bit at that moment

Reference no: EM13551755

The drill bit of the variable-speed electric drill of radius 0.03 m has constant angular acceleration 2.5 rad/s^2. The initial angular speed of the bit is 4 rad/s. What is the angular speed after 4 seconds and angle has the bit turned through that time? What is the linear speed of the bit at that moment ?

Reference no: EM13551755

Questions Cloud

Assume the hoop rolls on the ground without slipping : What linear speed must a 4.5×10?2 hula hoop have if its total kinetic energy is to be 0.15 ? Assume the hoop rolls on the ground without slipping.

Smallest value the angle 0 can have if rope is not to break : An adventurous crosses between two rock cliffs by slowly going hand over hand along a rope stretched between the cliffs. He stop to rest at the middle of the rope. The rope will break if the tension in it exceeds 2.50x10^4 N, and our hero's mass is 9..

Find the coefficient of kinetic friction : Find the coefficient of kinetic friction between a 4.1- block and the horizontal surface on which it rests if an 83 spring must be stretched by 3.0 to pull the block wi`th constant speed. Assume the spring pulls in a direction 15 above the horizontal..

What is the acceleration of a different speck : A speck of dust on a spinning DVD has a centripetal acceleration of 20 m/s^2. A) What is the acceleration of a different speck of dust that is twice as far from the center of the disk? B) What would be the acceleration of the first speck of dust if t..

What is the linear speed of the bit at that moment : The drill bit of the variable-speed electric drill of radius 0.03 m has constant angular acceleration 2.5 rad/s^2. The initial angular speed of the bit is 4 rad/s. What is the angular speed after 4 seconds and angle has the bit turned through that ti..

Find the separation of the interference fringes : Suppose two flat glass plates 30-cm long are in contact along one end and separated by a human hair at the other end. If the diameter of the hair is 50 µm, find the separation of the interference fringes when the plates are illuminated by green light..

Smallest magnetic field that puts rod on verge of sliding : A 1.0 kg rod rests on two horizontal rails 1.0 m apart and carries a current of 50 A from one rail to the other. The coefficient of static friction between rod and rails is 0.60. What are the magnitude and angle (relative to the vertical) of the smal..

What is the force on an electron between the plates : You have a parallel plate capacitor with plates of 1.3 m2, and the magnitude of charge on each plate is 6.7 C. What is the force on an electron between the plates?

What is the balls speed when it hits the floor : During a basketball game, a 1.0 kg ball gets thrown vertically in the air. Its momentarily stationary at a height of 5.0 m and then falls back down. What is the ball's speed when it hits the floor?

User Account

All Pages