- [Hard]Two blocks connected by an inextensible string over a frictionless pulley: m1 = 8 kg on a frictionless horizontal table, m2 = 2 kg hanging. Find the a...
- [Medium]Two masses 3 kg and 5 kg connected by a light inextensible string are pulled on a frictionless surface by a 32 N force applied on the 5 kg mass. Find ...
- [Medium]A 0.5 kg stone tied to a string moves in a horizontal circle of radius 1.2 m at constant speed 6 m/s. Find tension in the string....
- [Medium]Two blocks of masses 4 kg (top) and 6 kg (bottom) are in contact on a frictionless surface. A horizontal 30 N force is applied to the 6 kg block. What...
- [Medium]A horizontal force just sufficient to start motion of a 20 kg crate on a rough floor is 60 N. Once in motion, a constant force of 50 N keeps it moving...
- [Easy]In a light frictionless pulley system, masses 3 kg and 7 kg are released from rest. Acceleration of system (g = 10 m/s²)?...
- [Easy]A 0.15 kg ball moving at 20 m/s is stopped by a catch in 0.05 s. What average force is exerted by the hand?...
- [Easy]In rocket propulsion, thrust arises primarily due to:...
- [Hard]A horizontal force F just prevents a 10 kg block from sliding down a rough 37° incline (μ_s = 0.5). Find minimum F (g = 10 m/s²)....
- [Medium]In an accelerating car (a = 4 m/s² forward), a pendulum bob of mass 0.2 kg hangs at equilibrium making an angle θ with the vertical. Neglect air resis...
- [Medium]A 5 kg block rests on a rough incline of angle 30°. Coefficient of static friction is 0.4. Will the block remain at rest? (g = 10 m/s²)...
- [Easy]A 2 kg block is pushed across a rough horizontal surface by a 16 N force. It moves at constant velocity. What is the coefficient of kinetic friction? ...
- [Easy]A 6 kg block on a smooth horizontal surface is pulled by a constant horizontal force producing an acceleration of 3 m/s². What is the magnitude of the...
- [Easy]Which of the following situations best illustrates Newton’s First Law of Motion?...
- [Easy]According to Newton’s Third Law, when a swimmer pushes water backward with her hands, the water:...