Write different type of common forces.
Write different type of common forces.
Gravitational force, electric force and electromagnetic force are field force. Push or pull are other force in mechanics are contact forces.
A book resting on a table, system of rigid bodies connected by hings (or support) are mutual constant forces.
Component of constant force normal to surface is called reaction $(\mathrm{R}=\mathrm{N})$ Component of contact force parallel to surface is called frictional force.
Some examples of contact forces in mechanics
When spring is subjected to external force restoring force is developed in the spring which tries to regain original shape. This restoring force is proportional to change in length which is given by equation $\mathrm{F}=-\mathrm{K} x$. Negative sign indicate that restoring force is in opposite direction to displacement.
Similar Questions
A pebble of mass $0.05\; kg$ is thrown vertically upwards. Give the direction and magnitude of the net force on the pebble,
$(a)$ during its upward motion,
$(b)$ during its downward motion,
$(c)$ at the highest point where it is momentarily at rest.
Do your answers change if the pebble was thrown at an angle of $45^o$ with the horizontal direction? Ignore air resistance.
A pebble of mass $0.05\; kg$ is thrown vertically upwards. Give the direction and magnitude of the net force on the pebble,
$(a)$ during its upward motion,
$(b)$ during its downward motion,
$(c)$ at the highest point where it is momentarily at rest.
Do your answers change if the pebble was thrown at an angle of $45^o$ with the horizontal direction? Ignore air resistance.
A car is moving on an overbridge of radius $R$ with a constant speed $v$. As the car is descending on the overbridge from point $B$ to $C,$ the normal reaction on it due to bridge
A car is moving on an overbridge of radius $R$ with a constant speed $v$. As the car is descending on the overbridge from point $B$ to $C,$ the normal reaction on it due to bridge
In order to test the strength of a rope, one end is tied to a large tree and the other end is hitched to a team of $2$ horses. The horse pull as hard as they can, but cannot break the rope. If the rope is untied from the tree and attached to another team of $2$ horses with equal strength, and the two teams pull in opposite directions, the tension in the rope will
In order to test the strength of a rope, one end is tied to a large tree and the other end is hitched to a team of $2$ horses. The horse pull as hard as they can, but cannot break the rope. If the rope is untied from the tree and attached to another team of $2$ horses with equal strength, and the two teams pull in opposite directions, the tension in the rope will
Which of the following sets of concurrent forces may be in equilibrium
Which of the following sets of concurrent forces may be in equilibrium
Describe Galileo’s experiment of inclined plane regarding motion.
Describe Galileo’s experiment of inclined plane regarding motion.