Advertisements
Advertisements
Question
Give two examples to verify that a force tends to change the static condition of a body.
Advertisements
Solution
Force can change the static condition of a body.
- A rest rubber ball begins to move when a force applied to it.
- The player applies a force on the stationary football while taking a penalty kick in a football match. The force applied by the player makes the football move towards the goal.
APPEARS IN
RELATED QUESTIONS
Give one example in the case where Force is at a distance.
Complete the following:
Force = mass x ............
Complete the following:
1 N = ............kgf (approx)
A body of mass 1 kg is thrown vertically up with an initial speed of 5 m s-1. What is the magnitude and direction of force due to gravity acting on the body when it is at its highest point? Take G = 9.8 n kg-1
A body is acted upon by two forces of magnitude F, but in opposite directions. State the effect of the force if the two forces act at two different points of the body at a separation r.
Define 1 Dyne.
Give two examples each of contact and non-contact forces.
Plotting a graph for momentum on the Y-axis and time on X-axis. the slope of the momentum-time graph gives
A mechanic unscrew a nut by applying a force of 140 N with a spanner of length 40 cm. What should be the length of the spanner if a force of 40 N is applied to unscrew the same nut?
Can you lift or push a book lying on a table without touching it?
