Mechanics | Relativity Answers

How long will it take a car starting from rest to travel 659.0 km if its acceleration is 2.4 m/s/s?

a disc of mass 400g is rolling on horizontal surface with uniform velocity of 2m/s. calculate its total kinetic energy.

find the moment of inertia of a uniform square lamina of mass m and side a about its diagonal.

a carrnot engine performs 2000 j of work and rejects 4000 j of heat of the sink if the difference of temp b/w the source and sink is 85 degreefind the temp of the source and sink?

the train ‘A’ travelled a distance of 120 km in 3 hours whereas another train ‘B’ travelled a distance of 180 km in 4 hours. Which train travelled faster?

A ball is thrown downward 8 m/s. What is its speed 4 seconds later?

A bullet of mass 12 grams enters a piece of wood travelling at a speed of 500 m/s. It exits from the piece of wood at a speed of 190 m/s. Calculate the average force exerted by the wood on the bullet if the thickness of the wood is 5 cm.

assuming that the largest mass that can be moved by a flowing river depends on the velocity of flow,density of river water,and acceleration due to gravity,show that the mass varies as the sixth power of velocity of flow.

A steel rod has a diameter of 2.52 cm.Express its diameter in millimeter and meter

Triton is a satellite of Neptune and has a radius of 5.5 km. What is the mass of Triton if the gravitational force between Triton and a 2.5 kg boulder on its surface is 1.7 x 10-2 N?