A certain car is capable of accelerating at a rate of 0.62 m/s2. How long does it take for this car to go from a speed of 25 mi/h to a speed of 47 mi/h?

a crate of mass m1 on a frictionless inclined plane is attached to another crate of mass m2 by a massless rope. The rope passes over an ideal pulley so the mass m2 is susupended in the air. The plane is inclined at an angle x=36.9 degree us the conservation of energy to find how fast crate m2 is...

Two blocks attached by a string slide down a 20 deg incline. The lower block has a mass of m1=0.25 kg and a coefficient of kinetic friction=0.2. For the upper block, m2=0.8 kg and coefficient of kinetic friction=0.3. Find (a). The acceleration of the blocks and (b). The tension on the string.

All the particles of a body are situated at a distance r from the origin.the distance of centre of mass of body from origin will be- (a)=r (b)< or = r

You and a friend each drive 50.0 km. You travel at 90.0 km/hr and your friend travels at 95.0 km/hr. How long will your friend have to wait for you at the end of the trip?