Mechanics | Relativity Answers

Displacement(m) 0 20 40 40 80 80 60 40 0
Time (s) 0 10 20 30 40 50 60 70 80
Explain the different sections of the graph in as much as you can

boy throws a stone that weighs 50.0 N with a net horizontal force of 100N. What is the magnitude of the horizontal acceleration of the ball.

A stone is dropped from the top of a 45m high building. How fast will be moving when it reaches the ground?And what will its velocity be?

An aircraft heads to north at 320 km/h relative to the wind. The wind velocity is 80 km/h from the north.Find the velocity of the aircraft relative to the ground?

A ball is thrown horizontally from a height of 20 meter and hits the ground with a speed that is three times its initial speed what is the initial speed?

what is the mass of an object that experiences a gravitational force of 164 N near earth’s surface?

What would happen if I hit a 50 kg lump of lead with another 50 kg lump of lead ( both the same size,shape,density). , with respect to the damage to each block of lead? Would the one being hit sustain more damage or would it be the same to each?

Displacement 20 40 40 80 80 60 40 0
Time 10 20 30 40 50 60 70 80
Explain the different sections of the graphs as much as details as you can

Given that the kinetic energy of an object is 100 J. If the mass of object is 2kg then find its speed.

Two boats are identical, but one carries more people and so has a total mass that is twice as big as the other. If the two boats have identical initial kinetic energies and the frictional force from the water is the same in both cases, how far will the heavier boat travel before stopping, compared to the lighter boat?