Section 2.10: Unit Test
This test assesses your understanding of Newton’s Laws, forces on flat and inclined surfaces, tension, friction, and systems of connected objects. Attempt all questions carefully.
Unit Test Questions
- A 10 kg block is pushed with a 40 N force on a frictionless surface. Find acceleration.
- A 6 kg block rests on a 25° incline. Friction coefficient = 0.2. Find normal force and acceleration.
- Two blocks, 8 kg and 5 kg, connected over a frictionless pulley. Find acceleration and tension.
- A 12 kg block pulled horizontally with 100 N on a friction coefficient 0.1. Find net acceleration and friction.
- Block A (4 kg) and Block B (6 kg) connected via pulley. Find acceleration and tension if B hangs vertically.
- A 3 kg block on 45° incline connected to 5 kg hanging block over pulley. Find motion and tension.
- A 2 kg block pulled by 10 N at 30° above horizontal; friction coefficient 0.15. Find acceleration.
- Three blocks in series on horizontal surface. Pulled by 30 N. Find accelerations and tensions.
- A 6 kg block on 60° incline connected to 4 kg block over frictionless pulley. Find acceleration and tension.
- 5 kg block pushed up 25° incline with 20 N force; friction coefficient 0.1. Find net acceleration.