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प्रश्न
An archer shoots an arrow in the air horizontally. However, after moving some distance, the arrow falls to the ground. Name the initial force that sets the arrow in motion. Explain why the arrow ultimately falls down.
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उत्तर
The archer shoots an arrow by applying muscular force to stretches the string of the bow. When the string is released, it regains its original position that provides the initial force to set the arrow in motion horizontally.
The force of gravity that acts on the arrow in the downward direction and hence, the arrow ultimately falls to the ground.
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संबंधित प्रश्न
When an elephant drags a wooden log over the land, the forces that are applied on the log are ______, ______ and ______.
Match the following:
| Group ‘A’ | Group ‘B’ | ||
| (i) | An ox pulling a cart | (a) | Magnetic force |
| (ii) | Lifting a heavy iron object with a crane | (b) | Electrostatic force |
| (iii) | Weighing with a spring balance | (c) | Muscular force |
| (iv) | Applying brakes to a bicycle | (d) | Gravitational force |
| (v) | Picking up pieces of paper with a plastic scale | (e) | Frictional force |
Explain in your own words and give one example.
Gravitational force
Gravity pushes the ripen coconut from the tree to the ground.
What is the contact force?
Which of the following is NOT a type of non-contact force?
Non-contact forces, such as gravity and magnetism, are able to work over a distance because they act through what?
A person lifting a heavy bag from the ground is primarily using which type of contact force?
Contact forces arise mainly due to ______.
Two floating bottles with magnets repel each other at first, but attract when one magnet is reversed. What does this experiment demonstrate?
