An object of mass m = 2 kg is lying on a rough inclined slope such that it is at rest. Find the magnitude of contact force acting on the object (in Newtons).
Assume g=10 Coefficient of friction = .8 Angle of elevation = 30
answer is 2g
A spherical shell of mass m is resting on the rough horizontal plane with a coefficient of friction 0.3 a horizontal force act at a distance of 5r/3 from the baseline where r is the radius of the sphere. Find work done by friction body has moved by a distance of gm/r from the initial position?
A wooden block of mass m resting on a rough horizontal table is pulled by a force F as shown in figure. If k is the Coefficient of friction between block and table. What will be its acceleration?
A simple pendulum with length l and bob of mass m execute simple harmonic motion of small amplitude A. What would be the maximum tension in the string?
The engine of a car applies enough force to accelerate the car from 0 km/h to 180 km/h covering a distance of 100 m. If the mass of the car is 3 tons. Find the force applied by the car's engine?
A body covers a distance of 1m along a semi circular path what is the magnitude of displacement of the body and ratio of distance to displacement?
