Physics Answers

 A plane flying 30.0 m above the sea at a velocity of 100.0 m/s along the horizontal will drop relief goods to people who are stranded in an island. When shall the goods be released so that they fall exactly where the people are located? Prove your answer through your solution.

the sun is the original source of energy for many of our energy resources

Which energy does not originate from the sun?

A volleyball player hits the ball 40 cm above the top of the net towards his opponents’ court at a velocity of 15.0 m/s along the horizontal. If the top of the net is 2.0 m high from the floor and the length of the opponents’ court is 9.0 m, will the volleyball land within the opponents’ court? Why?

At what angle shall a curve be banked in order that a car with a velocity of 20.0 m/s will make the turn if the diameter of the path is 40.0 m?

At what velocity shall a car go around a curve banked at 100 if the diameter of the path is 40.0 m?

Find the radius of a curve banked at an angle of 35 degrees negotiated by a car at a velocity of 20.0 m/s?

A bike successfully made a turn around a circular path whose radius is 13 m. At what angle is the road banked if it’s velocity was 12.0 m/s?

The curve of a 70 m diameter circular path is banked at 35 degrees. At what velocity shall a 1000 kg car have for it to make the turn in this curve?

At what angle shall a curve be raised in order for a 1500 kg vehicle to make a turn around a 100.0 m radius of a circular track at a velocity of 30.0 m/s?

A body of mass 5 kg undergoes a constant acceleration of 5

m

s

2

. Calculate the resultant

horizontal force acting on the body. What will be the resultant force when it moves with

uniform velocity of 3 m/s?