Choose the correct alternatives
: In second class lever load and applied force act towards the same direction/opposite direction.

Choose the correct alternative: (ii) The energy required to launch an orbiting satellite out of the earth's gravitational influence is (more/less) than the energy required to project a stationary object at the same height (as the satellite) out of the earth's influence.

Two forces ( 25 pm 0.2 ) dyn and (18 pm 0.3) dyn act simultaneously on a particle. Find their resultant when they act (i) in the same direction , (ii) in opposite directions.

Equal currents passing through two infinitely long parallel wires. Would there be any magnetic field midway between the wires, if the currents are (i) in the same direction, (ii) in opposite directions?

How can the relative velocity be determined when two particles are moving with different velocities (i) in the same direction and (ii) in opposite directions ?

Two particles are projected simultaneously with the same initial velocity u at angles theta_1 and theta_2 with respect to the horizontal , but in opposite directions. If their paths are coplaner, what is the magnitude of their relative velocity at the time of projection ?

Statement I: In a circular motion, work done by centripetal force is not always zero. Statement II: If speed of the particle increases or decreases in circular motion, net force, acting on the particle is not direction towards the centre.

What types of magnetism are likely to be observed when magnetic moments align in the same direction, and when they align is opposite directions but in unequal numbers?