Mechanics | Relativity Answers

the vertical height of P above the ground is twice that of Q. A particle is projected downward with a speed of 9.8m per second from P and simultaneously another particle is projected with same velocity from Q. both particle reachthe ground simultaneously.the time taken to reach the ground is-

A canoe has a velocity of 0.390m/s southeast relative to the earth. The canoe is on a river that is flowing at 0.580m/s east relative to the earth

two masses of 7kg and 3 kg respctvly r hangng on pully.calculate acclration due to gravity....

A weightlifter lifts a set of weights a vertical distance of 2.00 m. If a constant net force of 350 N is exerted on the weights, what is the net work done on the weights?

A car enters the freeway with a speed of 5.6 m/s and accelerates uniformly for 3.7 km in 4.2 minutes. How fast is the car moving after this time? Answer reported in m/s.

A sphere of radius 20 cm,has a total charge of 3.14 micro coulomb distributed on its surface.Calculate the electric potential at points, 5 cm, 10cm, 15 cm,20 cm,..............50 cm.what will be the possible graph?

if the distance between two charges is doubled the force between them will become

stand on bathroom scale in an elevator. Though your normal weight is 545 N, the scale at the moment reads 651 N. Calculate the magnitude of the elevator's acceleration.

A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 46.0-gram mass is attached at the 18.0-cm mark, the fulcrum must be moved to the 39.2-cm mark for balance. What is the mass of the meter stick?

A ball of mass 0.5kg looses one third of its velocity when it makes a head on collision with an identical ball 'q' at rest after the collision 'q' cloves off with a speed of 20m per seconds in the original direction of 'p' of d first ball calculate the initial velocity of p