Abus moving with a acceleration of 2m/so. a cyclist is 96 m the bus starts simultaneously towards the bus at 20m/s. after what time will he able to overtake the bus

In the arrangement shown in fig show that the tension in the string between masses m2 and m3 is t=2m1+m3g/m1+m2+m3

15. a gas under constant pressure of 4.5x105pa when subjected to 800kj of heat, changes the volume from 0.5m3 to 2 m3. the change in the internal energy of the gas is

How do you describe radius of nth orbit of boh's model?