A constant force of 50 n is applied tangentially to the rim, Ask an Expert

Academics

A constant force of 50 N is applied tangentially to the rim of a solid disc with a 60 cm radius. The wheel has a moment of inertia of 40 kgm^2.

a) What is the mass of the disc?

b) 4 seconds after starting from rest, what angular speed does it have?

c) How many revolutions does it complete in 4 seconds?

d) Show by calculation that the kinetic energy of the wheel when t = 4 is equal to the work done upon the wheel by the external force from t = 0 to t = 4 seconds.

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M9882998

Have any Question?Write your Review or question?

Related Questions in Physics

In raising a 6400-n piano with a pulley system the movers

In raising a 6400-N piano with a pulley system, the movers note that, for every 3.0 m of rope pulled down, the piano rises 0.26 m Ideally, find the force required to lift the piano. Express your answer to two significant ...

Question a sensitive gravimeter at a mountain observatory

Question: A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 0.0060 m/s2 less than that at sea level (gsealevel = 9.83 m/s2). Part A: What is the observatory's altitude? Assume Rear ...

Question a small particle has charge -200 uc and mass

Question: A small particle has charge -2.00 uC and mass 1.50Ã-10-4 kg. It moves from point A, where the electric potential is V(A) = 200 V, to point B, where the electric potential V(B) = 920 V is greater than the potent ...

Question part a at what angle icirccedil1 to the normal

Question: Part A: At what angle Î¸1 to the normal would the first dark ring be observed? Part B: Suppose that the light from the pinhole projects onto a screen 3 meters away. What is the radius of the first dark ring on ...

Question the starter motor of a car engine draws a current

Question: The starter motor of a car engine draws a current of 170 A from the battery. The copper wire to the motor is 5.80 mm in diameter and 1.2 m long. The starter motor runs for 0.670 s until the car engine starts. A ...

Question your roommate is working on his bicycle and has

Question: Your roommate is working on his bicycle and has the bike upside down. He spins the 62cm -diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second. What is the pebble's sp ...

Question a scalloped hammerhead shark swims at a steady

Question: A scalloped hammerhead shark swims at a steady speed of 1.0 m/s with its 80 -cm-wide head perpendicular to the earth's 56 Â µT magnetic field. What is the magnitude of the emf induced between the two sides of t ...

Can you please help me figure out what to do in this

Can you please help me figure out what to do in this equation and why? While passing between Earth & Moon, a spacecraft is located on line connecting centers of two bodies and is at a distance of d=102km from radio anten ...

Question youre driving down the highway late one night at

Question: You're driving down the highway late one night at 16 m/s when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the brakes is 0.50 s, and the maximum deceleration of your ca ...

The total length of the blood vessels in the body is

The total length of the blood vessels in the body is roughly 500,000 km. Most of this length is due to the capillaries, which have an average diameter of 12 um. Estimate the total volume of blood in the human body by ass ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert