Physics, Science & Nature
Question # 01 Why do we wear seat belt? Answer: When a moving car stops quickly,the passengers move forward towards the windshield. Seat belts changes the forces of motion and prevent the passengers from moving. So, the chance of injury reduced. Question # 02 Why do...
Physics, Science & Nature
Since A . B = AB cos theta ——-> 1 & B . A = BA cos theta Here A and B are two vectors and Theta is the angle between them. As AB = BA (being magnitude) thus B . A = AB cos theta ——> 2 Comparing eq 1 and 2 we get A .B = B ....
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