Asmall planet having a radius of 1000 km exerts a gravitational force of 100 n on an object that is 500 km above its surface. if this object is moved 500 km farther from the planet, the gravitational force on it will be closest to : (a) 75 n(b) 71 n(c) 56 n(d) 50 n(e) 25 n

56 N

Explanation:

Gravitational force on the object:

where, G is the gravitational constant, M is the mass of the planet and m is the mass of the object, d is the distance between the planet and the object.

d'=d+500 km

Thus, option (c) is correct.

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

where is the circuit diagram ?