Gravitational Force Through Real-World Examples

We have: A golf ball of mass 0.045 kg is hit off the tee at a speed of 45 m/s. The golf club was in contact with the ball for ${\displaystyle 5.0\times {10}^{-3}}$ s. Find (a) the impulse imparted to the golf ball,and (b) the average force exerted on the ball by the golf club

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A small rock with mass 0.12 kg is fastened to a massless string with length 0.80 m to form a pendulum. The pendulum is swinging so as to make a maximum angle of 45 with the vertical. Air Resistance is negligible. 
a) What is the speed of the rock when the string passesthrough the vertical position? 
b) What is the tension in the string when it makes an angle of 45 with the vertical? 
c) What is the tension in the string as it passes through the vertical? 
 

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The electric field 10 cm from a long wire is 2.4 kN/C. If wire carries uniform charge, what will be the field strength at 40 cm from the wire?
$$\begin{gathered} A)0.6kN/C; \\ B)150N/C; \\ C)75N/C; \\ D)4.8kN/C \end{gathered}$$

The gravitational unit of force is_?

The rotational analogue of force is :

What are the important characteristics of gravitational force?

The force of Gravitation between two objects varies with the medium they are in. True or False

Force exerted on an object due to gravity is known as _________.

If the mass of an object be 10 kg, what is its weight ? ($g=9.8m/s^2$).

How does the gravitational force change between two objects when the distance between them is doubled ?

A man weighs 600 N on the earth. What is his mass? (take $g=9.8m{s}^{-2}$). If he were taken to the moon, he would weigh 100 N. How big is he on the moon? What is the gravity acceleration on the moon? [3 MARKS]

Explain the difference in weight when an object is in moon and earth

How to measure the inertia of an object?

How to find the volume bounded by x = 1, x = 2, y = 0, and ${\displaystyle y=x^2}$ revolved about the x-axis?

simplify ${\displaystyle \sqrt{19}}$

Which of the following is/are true about frictional force?
1.It depends on the nature of the surface in contact.
2. It always opposes relative motion between two objects.
3. It is a contact force.
4. It is a non- contact force.
A)1, 3 and 4
B)1 and 3
C)2, 3 and 4
D)All of the above

How can the mechanical advantage of a lever be increased.

What does it mean when Gibbs free energy is 0?

What is anti gravity​​​​​​

A player throws a ball upwards with an initial speed of $29.4m{s}^{-1}$. (a) What is the direction of acceleration during the upward motion of the ball? (b) What are the velocity and acceleration of the ball at the highest point of its motion? (c) Choose the x = 0 m and t = 0 s to be the location and time of the ball at its highest point, vertically downward direction to be the positive direction of x-axis, and give the signs of position, velocity and acceleration of the ball during its upward, and downward motion. (d) To what height does the ball rise and after how long does the ball return to the player’s hands? (Take $g=9.8m{s}^{-2}$ and neglect air resistance).