Oquizy

A tiny charged particle of mass 2×10⁻³ kg is placed in a uniform electric field and starts from rest. The field exerts a constant force of 4 N on it. Calculate the distance travelled in 10 s.

100 m 125 m 150 m 200 m

A toy car moves along a circular track of radius 5 m. It travels at 20 m/s for 5 s, then slows down uniformly to rest in 5 s. Calculate the total distance travelled along the track.

100 m, 80 m/s² 125 m, 80 m/s² 150 m, 80 m/s² 200 m, 80 m/s²

An electron speeds up from 10 m/s to 30 m/s in 20 s under a constant electric field. Calculate its acceleration, distance travelled, and the force acting on it if its mass is 9.1×10⁻³¹ kg.

a = 1 m/s², s = 200 m, F = 9.1×10⁻³¹ N a = 1 m/s², s = 400 m, F = 9.1×10⁻³¹ N a = 2 m/s², s = 200 m, F = 1.82×10⁻³⁰ N a = 2 m/s², s = 400 m, F = 1.82×10⁻³⁰ N

A proton is projected straight up at 20 m/s in a region where a uniform electric field produces a downward acceleration equal to 10 m/s². Calculate the total time of flight.

2 s 3 s 4 s 5 s

A particle moves along a circular path of radius 10 m at 15 m/s for 10 s, then accelerates uniformly to 25 m/s over 10 s, and finally slows uniformly to rest in 5 s. Calculate the total distance along the path. Also, calculate the centripetal acceleration at its maximum speed using the formula a = v²/r.

425 m, 62.5 m/s² 450 m, 62.5 m/s² 475 m, 62.5 m/s² 500 m, 62.5 m/s²

Quiz: Physics - Kinematics