A boy on a 2.0 kg skateboard initially at rest tosses an 8.0 kg jug of water in the forward direction. If the jug has a speed of 3.0 m/s relative to the ground and the boy and skateboard move in the opposite direction at 0.60 m/s, find the boy’s mass.
if the hill is 50 m high, can it supply water
to the top floor of a 100-m tall office building? If
not, how does water get to that floor?
Find the tension in the horizontal part of the supporting cable, and the compression in the boom, elevated to 25.0° , of the crane that lifts a 8900. N load.
A rigid plank 5.00 m long has mass 30.0 kg and supports a 75.0 kg block 2.00 m from the left end. How much force is needed to support each end of the plank?
A body of mass 3kg and volume 4 * 0.0004 m is hung from a balance graduated in Newton’s what is the reading balance when the body is
Find acceleration a velocity of 60 m/s in a distance of 360 m.
Find the acceleration of a car a velocity of 60 m/s in a distance 360 m
2. A man who has a mass of 80 kg can run up a flight of stairs of 20 steps in 5 seconds. Given the each steps in 20cm high, how much power does the man use to run up the flights of stairs?
acceleration of a car that comes to a stop from a velocity of 60 m/s in a distance of 360 m
Find the acceleration of a car that comes to a stop from a velocity of 60 m/s in a distance of 360 m.