Unit 2: Newtons Laws of Motion

Two blocks (m₁ = 3 kg, m₂ = 2 kg) are connected by a string over a frictionless pulley (Atwood machine). What is the acceleration? (g = 10 m/s²)

A block slides down a 30° incline with kinetic friction μk = 0.2. What is the acceleration? (g = 10 m/s²)

A 2 kg particle moves under a force [math] N. Starting from rest, its velocity at t = 4 s is

An object of mass m experiences a drag force [math]. The terminal velocity is reached when

A 5 kg block on a frictionless incline of angle 37° (sin 37° = 0.6, cos 37° = 0.8) has acceleration (g = 10 m/s²)

A particle of mass m moves in a circle of radius R with speed [math]. The magnitude of the net force at time t is

A 3 kg object has position [math]. The net force on the object at t = 2 s is

An object of mass 2 kg moves in one dimension under the force [math]. The motion is

A mass m on a spring (constant k) on a frictionless surface is also subject to a damping force [math]. The equation of motion is

A 10 kg block is pushed across a floor with coefficient of kinetic friction 0.3. The minimum force needed to keep it moving at constant velocity is (g = 10 m/s²)

An object moves through a fluid experiencing drag [math]. With gravity, the terminal velocity is

A conical pendulum moves in a horizontal circle of radius r at angle θ from vertical. The speed is

A particle of mass m attached to a string moves in a vertical circle of radius R. The minimum speed at the top for the string to remain taut is

Two blocks of masses 4 kg and 6 kg are connected by a string and pulled by a 50 N force on a frictionless surface. The tension in the string between the blocks is

A 10 kg crate is on a horizontal surface with coefficient of kinetic friction μ_k = 0.3. What is the friction force when the crate is sliding? (g = 10 m/s²)

A block of mass m is on a frictionless incline of angle θ. What is the acceleration of the block down the incline?

Two blocks of masses 3 kg and 5 kg are connected by a string over a frictionless, massless pulley (Atwood machine). What is the acceleration of the system? (g = 10 m/s²)

An object moves in a circle at constant speed. The net force on the object:

A car travels around a circular track of radius 50 m at a constant speed of 10 m/s. What is the centripetal acceleration?

An astronaut in orbit around Earth feels weightless because: