Question

A particle is dropped from the certain height, the motion of the particle will be​

Answer 1

The motion of particle will be a straight line towards centre of earth. This is due to force attraction called gravitational force. The particle will accelerate downwards with acceleration of 9.8m/s². The particle experience this acceleration due to gravity. Every object having mass has gravity.

• Formula for gravitational force= $\frac{GM_1 M_2}{R^{2}}$
• here G= gravitational constant with value=$6.67 \times 10^{-11}$
• M1 and M2 are masses of the objects between which force is acting
• R is the distance between them from there center of mass

Answer 2

Answer:

A

all equal being equal to 2/g−−−√ second

B

in the ratio of the square roots of the integers 1,2,3…

C

in the ratio of the difference in the square roots of the integers i.e.,

1–√,(2–√−1–√),(3–√−2–√),(4–√−3–√),….

D

In the ratio of the reciprocals of the square roots of the integers, i.e., 11–√,12–√,13–√ ,,…

Answer

C