Mechanics Quiz

A body continues in uniform motion unless acted on by a net force. This is:

ΣF = ma is:

Action and reaction forces act on:

Work done by a force is zero when displacement is:

Kinetic energy is:

Momentum is conserved in:

Elastic collision conserves:

SI unit of power is:

Centripetal acceleration is:

For SHM, restoring force is:

Time period of mass-spring is:

Simple pendulum period (small angle) depends on:

Projectile max range on flat ground at:

At highest point of projectile, vertical velocity is:

Friction always:

Static friction can be:

Impulse equals:

Center of mass of a uniform ring is at:

In pure rolling without slipping, v =:

Torque τ =:

Angular momentum L =:

Gravitational potential energy near Earth:

Escape velocity from Earth surface is about:

Kepler's 2nd law implies:

Kepler's 3rd law:

Coefficient of restitution e = 1 means:

Work–energy theorem states:

A force is conservative if:

In uniform circular motion, speed is:

Net work in uniform circular motion by centripetal force is:

Dimensional formula of force:

1 horsepower is approximately:

Moment of inertia of thin ring about axis through center ⊥ plane:

Parallel axis theorem:

For free fall from rest, distance ∝:

Relative velocity of approach before elastic 1D collision of equal masses becomes after collision:

Weightlessness in orbit is due to:

Banking of roads reduces reliance on:

Amplitude of SHM is:

Phase difference between v and a in SHM is:

Total energy in SHM is proportional to:

Inelastic collision example:

Average velocity equals instantaneous when:

Slope of v–t graph gives:

Area under F–t graph is:

Area under F–x graph is:

g decreases with altitude roughly as:

Reduced mass of m1, m2:

Radians in one full rotation:

Power is also equal to:

A body starts with u = 10 m/s and acceleration a = 2 m/s². Velocity after 2 s is:

A body starts with u = 11 m/s and acceleration a = 3 m/s². Velocity after 3 s is:

A body starts with u = 12 m/s and acceleration a = 4 m/s². Velocity after 4 s is:

A body starts with u = 13 m/s and acceleration a = 5 m/s². Velocity after 2 s is:

A body starts with u = 14 m/s and acceleration a = 2 m/s². Velocity after 3 s is:

A body starts with u = 15 m/s and acceleration a = 3 m/s². Velocity after 4 s is:

A body starts with u = 16 m/s and acceleration a = 4 m/s². Velocity after 2 s is:

A body starts with u = 17 m/s and acceleration a = 5 m/s². Velocity after 3 s is:

Mass m = 5 kg has acceleration 3 m/s². Net force is:

Mass m = 6 kg has acceleration 4 m/s². Net force is:

Mass m = 2 kg has acceleration 5 m/s². Net force is:

Mass m = 3 kg has acceleration 6 m/s². Net force is:

Mass m = 4 kg has acceleration 3 m/s². Net force is:

Mass m = 5 kg has acceleration 4 m/s². Net force is:

Mass m = 6 kg has acceleration 5 m/s². Net force is:

Mass m = 2 kg has acceleration 6 m/s². Net force is:

KE of mass 2 kg moving at 5 m/s is:

KE of mass 3 kg moving at 6 m/s is:

KE of mass 4 kg moving at 7 m/s is:

KE of mass 5 kg moving at 8 m/s is:

KE of mass 2 kg moving at 4 m/s is:

KE of mass 3 kg moving at 5 m/s is:

KE of mass 4 kg moving at 6 m/s is:

KE of mass 5 kg moving at 7 m/s is:

Momentum of 3 kg mass at 5 m/s is:

Momentum of 4 kg mass at 6 m/s is:

Momentum of 5 kg mass at 7 m/s is:

Momentum of 3 kg mass at 8 m/s is:

Momentum of 4 kg mass at 5 m/s is:

Momentum of 5 kg mass at 6 m/s is:

Momentum of 3 kg mass at 7 m/s is:

Momentum of 4 kg mass at 8 m/s is:

Mass 1 kg on spring k = 120 N/m. Period is approximately:

Mass 2 kg on spring k = 130 N/m. Period is approximately:

Mass 3 kg on spring k = 140 N/m. Period is approximately:

Mass 4 kg on spring k = 100 N/m. Period is approximately:

Mass 1 kg on spring k = 110 N/m. Period is approximately:

Mass 2 kg on spring k = 120 N/m. Period is approximately:

Mass 3 kg on spring k = 130 N/m. Period is approximately:

Mass 4 kg on spring k = 140 N/m. Period is approximately:

Projectile speed 20 m/s at 45° (take g=10). Max range is:

Projectile speed 21 m/s at 45° (take g=10). Max range is:

Projectile speed 22 m/s at 45° (take g=10). Max range is:

Projectile speed 23 m/s at 45° (take g=10). Max range is:

Projectile speed 24 m/s at 45° (take g=10). Max range is:

Projectile speed 25 m/s at 45° (take g=10). Max range is:

Projectile speed 26 m/s at 45° (take g=10). Max range is:

Projectile speed 27 m/s at 45° (take g=10). Max range is:

Projectile speed 28 m/s at 45° (take g=10). Max range is:

Projectile speed 29 m/s at 45° (take g=10). Max range is: