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Force And Pressure

Question

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Name the forces acting on a plastic bucket containing water held above ground level in your hand. Discuss why the forces acting on the bucket do not bring a change in its state of motion.

Solution

The bucket is help up by the action of muscles in our body in the upward direction and force of gravity acting downwards. The force resulting due to the action of muscles in our body is known as muscular force.
Thus, the bucket is held in position by the action of upward and downward force.

The forces do not bring the change in its state of motion because they are acting in opposite direction with equal magnitude. Hence, bucket stays in the same position.

Some More Questions From Force And Pressure Chapter

An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms :

Muscular, contact, non-contact, gravity, friction, shape, attraction

ii) The force applied by the archer to stretch the bow is an example of ____________ force.

An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms :

Muscular, contact, non-contact, gravity, friction, shape, attraction

iii) The type of force responsible for a change in the state of motion of the arrow is an example of a ____________ force.

An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms :

Muscular, contact, non-contact, gravity, friction, shape, attraction

(iv) While the arrow moves towards its target, the forces acting on it are due to and that due to of air.

In the following situation identify the agent exerting a force and the object on which it acts. State the effect of the force in such case.

Squeezing a piece of lemon between the fingers to extract its juice.

In the following situation identify the agent exerting a force and the object on which it acts. State the effect of the force in such case.

Taking out paste from a toothpaste tube.

In the following situation identify the agent exerting a force and the object on which it acts. State the effect of the force in such case.

A load suspended from a spring while its other end is on a hook fixed to a wall.

A blacksmith hammers a hot piece of iron while making a tool. How does the force due to hammering affect the piece of iron?

An inflated balloon was pressed against a wall after it has been rubbed with a piece of synthetic cloth. It was found that the balloon sticks to the wall. What force might be responsible for the attraction between the balloon and the wall?

Name the forces acting on a plastic bucket containing water held above ground level in your hand. Discuss why the forces acting on the bucket do not bring a change in its state of motion.

A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad.

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