A body is released from rest and allowed to fall freely f...
A body is released from rest and allowed to fall freely from a given height under gravity. The kinetic energy at its half-way point is?
a little above half of its initial energy
a little below half of its initial energy
a half of its initial energy
a little above its initial energy
a little below its initial energy
Correct answer is C
Energy for complete distance is twice the energy for half the distance
A gas occupies a certain volume at 27°C. At what temperature will its volume be twice times...
Which of the following statements correctly defines a simple machine? a device ...
If an object just begins to slide on a surface inclined at 30º to the horizontal,the coeff...
What is the escape velocity of a satellite launched from the earth’s surface? (Take g as 10ms-...
Find the effective resistance in the diagram above ...
The instrument to measure the relative density of liquid is ...