Classical Mechanics Answers

velocity of sound in air is320 m/s . A pipe closed at one end has length of 1m

A ball weighing 1kg, suspended on a spring, oscillates harmoniously with an amplitude of 10 cm and a period T = 3s. Determine the kinetic energy when the ball is in equilibrium

Show that the velocity of impact at the ground of an object thrown vertically upward is equal to the initial velocity of the upward throw.

A car with an acceleration of 2m/s^-2 starts from point P at 8:00 a.m. ten seconds later a second car with an acceleration of 3m/s^-2 starts from the same point to overtake the first.

Determine the time when the second car overtakes the first.

Starting from rest a car attains an acceleration of 2 m/s^-2

Find the time and velocity at this position. (in km/hr)

An object from rest starts to accelerate at 2.5m/s^-2

Determine the time required to cover 100m.

compute the maximum force p that can be applied to thte foot pedal. the 6mm diameter pin at b is in single shear, and its working shear stress is 28mpa. the cable attached at c has a diameter of 3mm and working normal stress of 140mpa free

A ball is thrown vertically upward with a velocity of 30m/s^-1

Give its velocity after 1s.

Determine the time required for the ball to reach max height.

Find the time required to reach a height of 30m.

Solve for the maximum height the ball achieves.

An object accelerates at point O. At a point 5m from point O the object hits a velocity of 3m/s^-1 if the acceleration is 4m/s^-2

Find the object's position and velocity at t = 2s.

Determine the object's position when velocity is 5m/s^-1

What voltage mist be applied to an xray tube for it to emit xrays with a minimum wavelength of 30picometres