LAW OF MOTION ‒ IMPORTANT SOLVED QUESTIONS
Q1. F=20 N, m=5 kg
→ a=4 m/s².
Q2. 30N right, 12N left, m=6
→ a=3 m/s².
Q3. Atwood: m1=3, m2=5
→ a=2.45 m/s², T=36.75 N.
Q4. Incline: m=4, θ=30°, μ=0.15
→ a=3.63 m/s².
Q5. μs=0.4, m=10
→ Fmin=39.2 N.
Q6. Circular: m=800, r=50, v=20
→ Fc=6400 N.
Q7. Elastic collision: m1=2, m2=3
→ v1'=-1, v2'=4 m/s.
Q8. Impulse: m=0.2, Δv=18, t=0.01
→ Favg=360 N.
Q9. Incline slip: μs=0.3
→ θ=16.7°.
Q10. Elevator: m=70, a=2
→ W=826 N.
Q11. Pull 60N @30°, m=8, μ=0.2
→ a=5.29 m/s².
Q1. F=20 N, m=5 kg
→ a=4 m/s².
Q2. 30N right, 12N left, m=6
→ a=3 m/s².
Q3. Atwood: m1=3, m2=5
→ a=2.45 m/s², T=36.75 N.
Q4. Incline: m=4, θ=30°, μ=0.15
→ a=3.63 m/s².
Q5. μs=0.4, m=10
→ Fmin=39.2 N.
Q6. Circular: m=800, r=50, v=20
→ Fc=6400 N.
Q7. Elastic collision: m1=2, m2=3
→ v1'=-1, v2'=4 m/s.
Q8. Impulse: m=0.2, Δv=18, t=0.01
→ Favg=360 N.
Q9. Incline slip: μs=0.3
→ θ=16.7°.
Q10. Elevator: m=70, a=2
→ W=826 N.
Q11. Pull 60N @30°, m=8, μ=0.2
→ a=5.29 m/s².
