Laws of MotionHard
Question
The breaking strength of a rope is 45 kg wt. A fire man weighing 60 kg slides down the rope. The rope :
Options
A.will break if the acceleration of the fire man is more than g/4
B.will break if the acceleration is less than g/4
C.will break, whatever the acceleration
D.will not break, whatever the acceleration
More Laws of Motion Questions
In an ideal gas at temperature t, the average force that a molecule applies on the walls of a closed container depends o...The maximum speed of a car on a road turn of radius 30 m; if the coefficient of friction between the tyres and the road ...The pulley arrangements shown in the figure are identical, the mass of the rope being negligible. In case (a) mass m is ...A rocket is ejecting 1 kg of gases per sec at a velocity of 60 km/s. The accelerating force on the rocket is...It the figure show a ring of mass M and a block of mass m are in equilibrium. The string is light and pulley P does not ...