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 ....
Physics, Science & Nature
Consider any coplaner vectors A, B, C, …. The vector addition of these vectors by rectangular components consist of the following steps. Find the x- and y-components of all the vectors. Find the x-component of resultant vector(R) by adding x-components of all...
Physics, Science & Nature
A+B = B+A Consider two vectors A and B as shown in figure. According to head to tail rule, the resultant vector of A and B is: R = A+B If order of two vectors is changed then their resultant vector by head to tail rule is as under. R = B+A So, from both equations we...
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