A body with a weight of 258 lb changes it velocity from 25 ft/s to 146ft/s. Calculate the change in its kinetic energy

What will be the kinetic energy in kWh of an aeroplane which has a mass of 30 tons and is travelling at 1000 km/hr speed? If this plane is made to nose vertically upwards at this speed with power off, calculate the vertical distance through which the plane will move. Take g = 9.80 m/s²

(a) A car with a mass of 850 kg is moving to the right with a constant speed of 1.44 m/s. What is the total force on the car? (b) What is the total force on the car if it is moving to the left? *

A 5 lbm object is moving at a speed of 10 fps^2 at an elevation of 30 ft above the sea level ground. Calculate the weight of the object and its potential and kinetic energies.

Find the maximum height achieved by a ball thrown upward with velocity 20 m/s. Take g=10 m/s2

A force f exerts on a body which changes its velocity from vi to vf and body beings to move in a circular path of radius r. How can you calculate change in kinetic energy of a system? Derive a general relation .

A car acquires a velocity of 34 m/s in 10 s starting from 14 m/s. Calculate its average velocity?

Determine the force necessary to accelerate a mass of 20 lbm at a rate of 60 ft/sec2 vertically upward.

can you just give me the answer to this question; "Give expressions for the total kinetic and potential energy of the system"

A 16-lb shell has a velocity of 2000 ft/s when it leaves the barrel of a cannon. if the barrel is 10 ft, find the average force on the shell while its in the barrel.