The bob of a simple pendulum takes 0.25s to swing from its equilibrium position to one extreme end. Calculate its period

The period of oscillation pf a particle executing simple harmonic motion is 4\(\pi\) seconds. If the amplitude of oscillation is 3.0m. Calculate its period

An inelastic collision takes place between ball of known masses, just before the collision one of the ball is moving with a known velocity while the other is stationary. Which of the following physical quantities can be determined from the information given?

Using the force displacement diagram shown above. Calculate the work done