A 0.3 kg ball moving at 10 m/s hits a rod 0.5 m from pivot a… A 0.3 kg ball moving at 10 m/s hits a rod 0.5 m from pivot and stops. Rod has moment of inertia 0.2 kg·m².What is the angular velocity of the rod after the collision? Read Details
What is the mechanical energy of a system if potential energ… What is the mechanical energy of a system if potential energy = 30 J and kinetic energy = 70 J? Read Details
A 10 N force is applied perpendicular to a wrench 0.3 m long… A 10 N force is applied perpendicular to a wrench 0.3 m long. What is the torque? Read Details
A solid cylinder (5 kg, 0.4 m radius) rolls without slipping… A solid cylinder (5 kg, 0.4 m radius) rolls without slipping down a 3 m incline.What is its speed at the bottom? Read Details
If a force of 10 N is applied over a distance of 5 m, how mu… If a force of 10 N is applied over a distance of 5 m, how much work is done? Read Details
A 2 kg object slides 5 m down a frictionless 30° incline, st… A 2 kg object slides 5 m down a frictionless 30° incline, starting from rest.What is its speed at the bottom? Read Details
A 5 kg object is moving at 4 m/s. What is its momentum? A 5 kg object is moving at 4 m/s. What is its momentum? Read Details
What is the potential energy stored in a spring with spring… What is the potential energy stored in a spring with spring constant 300 N/m compressed by 0.1 m? Read Details
According to the law of conservation of momentum, which of t… According to the law of conservation of momentum, which of these is true during a collision (if no external forces act)? Read Details
