Sunil Batra Solutions for Chapter: Gravitation, Exercise 7: NTSE--Target: Scholastic Aptitude Test-SAT

An apple falls from a tree because of gravitation between the earth and apple. If $F_1$ is the magnitude of force exerted by the earth on the apple and $F_2$ is the magnitude of force exerted by apple on earth, then:

An object of mass $10 \mathrm{kg}$ is dropped from a building of height $40 \mathrm{m}$. Given the best description of relationship between gravitational potential energy and kinetic energy, after $2$ seconds, $\left(g=10 \mathrm{m}/{\mathrm{s}}^2\right)$ is

The gravitational effect of which of the following causes tidal waves in sea?

Suppose the gravitational attraction of earth suddenly disappear, then 

A man carrying a load of weight $W$ on his hand jumps from a height. During free fall, the weight of load experienced by man is

What is the weight of a $7 \mathrm{kgwt}$ body in a planet whose mass is $\frac{1}{7}$ of that of earth and radius is $\frac{1}{2}$ of the earth?

Height at which value of 'g' becomes one-fourth to that on earth is

If we move from equator to pole, the value of 'g' is