What is the acceleration of a train travelling at `40 m s^-1` as it goes round a cuve of `160 m ` radius?

A rope of negligible mass is wound round a hollow cylinder of mass 3 kg and radius 40 cm. What is the angular acceleration of the cylinder if the rope is pulled with a force of 30 N ? What is the linear acceleration of the rope ? Assume that there is no slipping.

If a train travelling at 72 mkh ^-1 is to be brouhgt to rest in a distance 200 m, then its retardation should be

Find the distance travelled by Shaina if she takes three rounds of a square park of side 70m.

Earth also moves in circular orbit around the sun once every year with an orbital radius of 1.5xx10^(11)m . What is the accerelation of the earth ( or any object on the surface of the earth) towards the centre of the sun? How does this acceleration compare with g = 9.8 m//s^(2) ?

A train starting from a railway station and moving with uniform acceleration attains a speed 40 kmh^(-1) in 10 minutes. Find its acceleration.