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What is the SI unit of Force? . what is force and pressure? what is repulsion? define-: . why there are big double tyres in the backside of a truck/bus.. A tin can collapses when air is removed. why? don't spam. only who will give the best answer I will mark him/her the brainliest. |
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Answer» hlo mate here's your answer Explanation:FORCEForce cannot be seen, heard, or tasted. Only its effects can be felt or seen. The various effects of force are:1. It can move a body initially at rest.2. It can bring a moving body to rest.3. It can change the direction of a moving body.4. It can change the speed of a moving body.5. It can change the shape of a body.6. It can change the size of a body.Let us take an example of a football lying in a field (fig – A). When a player HITS the ball, it STARTS moving, i.e., it starts moving only when we apply force. Thus, force can move a body initially at rest.Now, if the goalkeeper catches the moving ball (fig – B), then it comes to rest. The goalkeeper applies a force to stop the moving ball. Hence, we can say that force can bring a moving body to rest.If ANOTHER player kicks the moving ball in the opposite direction (fig – C), then it starts moving in the directiontowards which it is kicked i.e. the direction of the football changes. The player applies force on the football to change its direction. Hence, force can change the direction of a moving body. ALSO, if the player hits the ball hard, then the NET speed of the ball will also change. Hence, the speed of a moving body can be changed by applying force.I HOPE IT HELPS YOU PLZ MARK AS BRAINLIST OK |
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