he gains a speed of 20 ms^−1. The work done by the viscous air drag is
Sahay Sir > Question Answers > he gains a speed of 20 ms^−1. The work done by the viscous air drag is
Figure shows a smooth vertical circular track AB of radius R. A block slides along the surface AB when it is given a velocity equal to 6gR−−−−√ at point A. The ratio of the force exerted by the track on the block at point A to that at point B is
20
Oct
Figure shows a smooth vertical circular track AB of radius R. A block slides along the surface AB when it is given a velocity equal to 6gR−−−−√ at point A. The ratio of the force exerted by the track on the block at point A to that at point B is A person of mass [...]
A bead of mass m is released from rest at A to move along the fixed smooth circular track as shown in figure. The ratio of magnitudes of centripetal force and normal reaction by the track on the bead at any point P0 described by the angle θ(≠0) would
20
Oct
A bead of mass m is released from rest at A to move along the fixed smooth circular track as shown in figure. The ratio of magnitudes of centripetal force and normal reaction by the track on the bead at any point P0 described by the angle θ(≠0) would A person of mass 70kg jumps [...]
A projectile is fired with some velocity making certain angle with the horizontal. Which of the following graphs is the best representation for the kinetic energy of a projectile (KE) versus its horizontal displacement (x)?
20
Oct
A projectile is fired with some velocity making certain angle with the horizontal. Which of the following graphs is the best representation for the kinetic energy of a projectile (KE) versus its horizontal displacement (x)? A person of mass 70kg jumps from a stationary helicopter with the parachute open. As he falls through 50 m [...]
A person of mass 70kg jumps from a stationary helicopter with the parachute open. As he falls through 50 m height, he gains a speed of 20 ms^−1. The work done by the viscous air drag is
20
Oct
A person of mass 70kg jumps from a stationary helicopter with the parachute open. As he falls through 50 m height, he gains a speed of 20 ms^−1. The work done by the viscous air drag is A person of mass 70kg jumps from a stationary helicopter with the parachute open. As he falls through [...]