The historical tower of Pisa does not fall even though it is tilted because the vertical line passing through its center of gravity passes through the base. This alignment helps stabilize the tower and prevent it from collapsing despite its ...
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A person climbing a hill leans forward to increase stability. Leaning forward shifts the center of mass towards the hillside, improving balance and reducing the risk of falling backward. This position also allows for better utilization of leg muscles and ...
If a person pushes a wall but fails to displace it, then he does no work. Work is defined as the product of force and displacement in the direction of the force. Since there is no displacement, no work is ...
The work done to hold a weight of 20 kg at a height of 1 m above the ground is zero Joules. When an object is held stationary, there is no displacement, so no work is done against gravity.
An astronaut can jump higher on the lunar surface than on the Earth’s surface because the force of gravity on the lunar surface is very less as compared to the Earth’s surface. This weaker gravity allows the astronaut to exert ...