Question

D) 2
a) a
Q. 4. In perfectly inelastic collision final velocity of bodies is ..**
a) same by different c) both a & b d) none of these
2. 5. What are the dimension of the universal gravitational constant ?
9. 6. What is periodic time of a geostationary satellite ?
1.7. define free fall.
Section - B
. 8. If the motion of an object is described by x = f(t). Write formulae for
instataneous velocity and acceleration.
2.9. Define binding energy and escape velocity of a satellite.
1.10. What is meant by stable Anna unstable equilibrium ?
. 11. Calculate the period of revolution of a polar satellite orbiting close to
surface of the earth. Given R=6400 km, g=9.8 m/s2.
OR
11. At what distance above the surface of the earth the acceleration due towhat is meaning by stable and unstable equity ​

Answer 1

Answer:

Q4:

final velocity is zero.

2.5:

The dimensions assigned to the gravitational constant are force times length squared divided by mass squared; this is equivalent to length cubed, divided by mass and by time squared