百度试题 结果1 题目(b)Which of these is a scalar quantity?B A acceleration B energy C momentum D velocity 相关知识点: 试题来源: 解析 B (b)B. energy 反馈 收藏
Is momentum a scalar quantity? How is momentum related to the law of conservation of momentum? How to draw momentum vectors Does impulse equal momentum or a change in momentum? What is rate of change of momentum? What is the formula for conservation of momentum?
百度试题 结果1 题目Which of the following physical quantity is scalar? A. Force B. Impulse C. Momentum D. Work 相关知识点: 试题来源: 解析 D 反馈 收藏
Energy is scalar quantity and its conservation helps us to predict magnitude quantity (for example, speed – magnitude of the velocity of an object). The linear momentum is vector quantity. Its conservation will help us to predict not only magnitude but also the direction of an object’s ...
In such cases, we may treat the angular momentum of a particle or a body as a signed (+ or –) scalar quantity. Then the angular momentum L is positive when ω, the angular velocity, is positive and negative when ω is negative. In those cases for which the rotational motion of a ...
Now, one of the most crucial questions in this concept is whether momentum is a vector quantity or scalar quantity? To answer this question, let us point out the elements needed to say that a quantity is a vector quantity- Magnitude and Direction. Any quantity that has a magnitude and a ...
wheremis the mass andvis the linear velocity. Since linear momentum is the product of a scalar and a vector quantity, it is a vector and hence has both magnitude and direction. According to the general statement of Newton's second law, for a forceF, a momentumP, and a timet, Eq. (...
Since mass is a scalar and velocity is a vector, momentum is also a vector quantity, with the same direction as the velocity. Let us consider how to calculate momentum with some examples: A person weighing 65 kg65 kg, jogging at 2 m/s2 m/s has a momentum magnitude of 65 kg⋅2 m...
If a force is constant, its impulse is the product of the force’s magnitude and time interval over which it acts. ? Resolve the force and velocity (or impulse and momentum) vectors into their x, y, z components, and apply the principle of linear impulse and momentum using its scalar ...
Energy is a scalar quantity, that is it is independent of direction. Energy can exist in different forms and can sometimes be exchanged between these forms, examples of types of energy are: Potential energy Energy by virtue of being on a force field. for example gravity, electric and magnetic...