Newtons second law of motion

A boat has a mass of 6800 kg. Its engine generates a drive force of 4100 N, due west, while the wind exerts a force of 800 N, due east, and the water exerts a resistive force of 1200 N due east. What is the magnitude and direction of the boats acceleration?

Nonequilibrium Applications of Newtons laws of motion

A crate is resting on a ramp that is inclined at a angle (theta) above the horizontal. As (theta) is increased, the crate remains in place until (theta) reaches a value of 38.0 degrees. Then the crate begins to slide down the slope. (a) Determine the coefficient of kinetic friction between the crate and the ramp surface. (b) The coefficent of kinetic friction between the crate and the ramp surface is 0.600. Find the acceleration of the moving crate.

Work Done By constant Force

A 75.0 kg man is riding an escalator in a shopping mall. The escalator moves the man at a constant velocity from ground level to the floor above, a vertical height of 4.60 m. What is the work done on the man by (a)the gravitational force and (B) the escalator?

Energy Theorem and Kinetic Energy - A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.3 x 10^5 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 4.5 x 10^7 J at lift-off. What is the work done on the jet by the catapult?

A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.3 x 10^5 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 4.5 x 10^7 J at lift-off. What is the work done on the jet by the catapult?

Energy Theorem and Kinetic Energy

A 16-kg sled is being pulled along the horizontal snow-covered ground by a force of 24 N. Starting from rest, the sled attains a speed of 2.0 m/s in 8.0 m. Find the coefficient of kinetic friction between the runners of the sled and the snow.