Two heavy objects of masses 1 kg and 2 kg are moving towards each other under the mutual gravitational force of attraction between them. At a particular instant,
distance between them is 1 m. Find the acceleration of the object of mass 2 kg in terms
of the gravitational constant G.

Aplane flies directly between two cities, a and b, which are separated by . from a to b, the plane flies into a headwind. on the return trip from b to a, the wind velocity is unchanged. the trip from b to a takes less than the trip from a to b. what is the airspeed of the plane, assuming it is the same in both directions

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Amother used 150 watts of power to raise a 15 newton object in a time interval of 8.0 seconds. through what vertical distance was the object raised ?