Mechanical Properties of Solids — Physics STD 11 Science — Question

Centre of mass of a triangular lamina is at the point of intersection of the is _______.

A man and a child weighed are holding a weight in 2 kg their respective palms. On whose palm will there be more pressure?

Are the Kepler's laws applicable only to the solar system?

What is the position vector of inst. velocity and inst. acceleration of particle moving in a circular path with a constant speed?

State if the following statements is true or false. Give reasons for your answer: Work done in the motion of a body over a closed loop is zero for every force in nature.

In a game of tug of war, one team is slowly giving way to the other. Which team is doing positive work and which team negative?

When a load of 2 kg is suspended from a wire its length increased by 1% then calculate the linear strain produced on the wire.

Would you prefer a voltmeter or a potentiometer to measure the emf of a battery?

If an object is rotating then is there definitely any torque acting on it?