Mechanics | Relativity Answers

How centripetal force produced in uniform circular motion??

Consider a mass M = 25.0kg sitting on an inclined plane whose angle of inclination is 30degrees. A massless core connected to M passes over a friction less pulley and is attached to a mass m= 15.0kg. The mass M slides up the plane at a constant speed. Find the coefficient of kinetic friction between the mass M and the plane

A 15.0kg watermelon and a 11.00kg pumpkin are attached each via a cord that wraps over a pulley. Friction is negligible everywhere in the system. Calculate the acceleration of the watermelon and pumpkin. Specify magnitude and direction

What is the magnitude of the resultant vector of 8 meters North and 8 meters East displacement. Use the WRISd editor icon to answer this question. You can write using the pen to right . Your drawing will be ttransfered to actural writing

a planet of mass M moves in circular orbit of radius r0 in the gravitational potential vr=-k/r then what is the angular momentum of this planet.

show that if a rod held at angle Theta to the horizontal and released ,its lower end will not slip if the friction coefficient between rod and ground is greater then 3sinthetacostheta/1+3sin^2theta.

Someone had an idea for an electric fan that costs nothing to run. the electric motor which turns the fan also turns a generator. this produces electricity for the motor, so no battery or mains supply is needed explain why this idea will not work

The kinetic energy of an object of mass, m, moving with a speed “v” is 25J. By what factor will its kinetic energy change if its mass is tripled while the velocity is decreased by one third?

what is the time period of oscillation for rigid hinged body