Work power energy

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Impulse

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Q: Sensei ❓Is impulse a vector or scalar? Answer: Impulse is a vector, so a negative impulse means the net force is in the negative direction. 🔹Table of Contents: For better understanding, one should know the answer to the following questions. 1 What is impulse vs momentum? 2 What is impulse with example? 3 Is impulse a vector? 4 What is impulse write its formula? 5 What is called impulsive force? 6 Why is impulse equal to momentum? 7 What is the difference between impulse and force? 8 Why does impulse mean? 9 What is the formula and unit of impulse? 10 What is an example of impulse and momentum? 11 Is impulse a scalar force? 12 What is unit of velocity? 13 What is momentum unit? 14 How do you find impulse? 15 What are 3 examples of impulse? 16 Is impulse a physical quantity? 17 Does impulse increase with time? 18 Is velocity a vector? 19 Is momentum a force? 20 What is impulse of force give one example? 21 Which is an example of impulsive force? 22 Does a m...
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X AND Y COMPONENTS OF A VECTOR

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X AND Y COMPONENTS OF A VECTOR  This article will teach you how to find the x and y components of a vector. We already know what vectors and scalars are and how important they are when we study physics. Finding vector components is the opposite of vector addition, where we find vector addition of two or more vectors. Here, a vector is split into two components. In physics problems, you are sometimes given an angle and a magnitude to describe a vector. You then have to use trigonometry to find the components. Finding the horizontal component of a force F of magnitude 12 N acting on a block at a 30-degree angle to the horizontal axis is one such example. If you want to calculate the work done by this force in moving the block horizontally, you must first calculate the horizontal component of force F. Components of a Vector Vectors can exist in one, two, or three dimensions of space. The vector components are determined by the number of dimensions in our space. Components of vectors i...
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How do you know whether to use dot product or cross product in a vector problem? a. 1. The most basic difference is whether you are looking for a scalar result or a Vector result. Dot product gives you a scalar result whereas Cross product gives you a Vector result. 2. Basically the purpose of application differs. Dot product gives you an expression for Work done whereas Cross product gives you an expression for Torque. 3. Dot product would have been maximum if both the vectors had acted in the same direction, but a Cross product = 0 if both the vectors are in the same direction. More detailed explanation is given below- A. Dot product is simply the effect of one vector on the other should it be acting in the same direction as the base vector. Assume two vectors acting on a mass in the exact opposite directions. They would nullify each other. But if they were acting on the body in the same direction, the effect of the forces would be maximum. Assume vector a = 2i and vector b = 4i (bot...
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