For the following questions answer them individually
If the mass of a body is 'm' on the surface of the earth, its mass on the surface of the moon will be :
A rope makes 140 rounds of the circumference of a cylinder, the radius of whose base is 14 cm. How many times can the same rope go round a cylinder with radius 20 Cm ?
A man completes a journey in 8 hours. He covers half the distance at 40 km/hr and the rest at 60 km/hr. the length of the journey is :
