IGCSE, Edexcel, IB and AP Science Courses | Dr Dabour Hub Academy

1.

Find the force P parallel to the plane that pulls the 15 kg body up at constant speed (μ = 0.3, g = 9.8).

128 N

94.5 N

33.8 N

60.7 N

2.

Find the least force P parallel to the plane that stops the 6 kg body sliding down (μ = 0.25, g = 9.8).

45.8 N

12.0 N

21.7 N

33.7 N

3.

Find the force P parallel to the plane that pulls the 5 kg body up at constant speed (μ = 0.1, g = 9.8).

16.8 N

12.2 N

21.4 N

4.60 N

4.

Find the least force P parallel to the plane that stops the 4 kg body sliding down (μ = 0.4, g = 9.8).

2.36 N

16.6 N

30.8 N

14.2 N

5.

Find the least force P parallel to the plane that stops the 6 kg body sliding down (μ = 0.15, g = 9.8).

41.6 N

6.24 N

47.8 N

35.3 N

Lesson 1: Equilibrium of a Particle, Friction and Limiting Static Friction — Picture questions (exam style)