A body whose momentum is constant

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A body whose momentum is constant

Submitted by Jesse M. We will assign your question to a Numerade educator to answer. Your personal AI tutor, companion, and study partner. Ask unlimited questions and get video answers from our expert STEM educators. Millions of real past notes, study guides, and exams matched directly to your classes. A body, whose momentum is constant, must have constant a Force b Velocity c Acceleration d All of these. When a body is acted by a constant force, then which of the following quantities remains constant a Velocity b Acceleration c Momentum d None of these. A body is moving with a constant momentum. The motion of the body is :? A uniform velocity? B accelerated? C de-accelerated? D none of the above. A body whose momentum is constant must have constant a force b velocity c acceleration d all of these. When a body is acted by a constant force, then which of the following quantities remain constant A.

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All of these. A body falls freely. What is constant? A : For a particle moving in a straight line, its acceleration must be either parallel or antiparallel to velocity. R : A body moving along a curved path may have constant acceleration.

So far, we have looked at the angular momentum of systems consisting of point particles and rigid bodies. We have also analyzed the torques involved, using the expression that relates the external net torque to the change in angular momentum. In this case, we can introduce the law of conservation of angular momentum. The angular momentum of a system of particles around a point in a fixed inertial reference frame is conserved if there is no net external torque around that point:. Any of the individual angular momenta can change as long as their sum remains constant. This law is analogous to linear momentum being conserved when the external force on a system is zero. The net torque on her is very close to zero because there is relatively little friction between her skates and the ice. Also, the friction is exerted very close to the pivot point.

A body whose momentum is constant

According to this law, a body at rest tends to stay at rest, and a body in motion tends to stay in motion, unless acted on by a net external force. Sir Isaac Newton was an English scientist who was interested in the motion of objects under various conditions. In , he published a work called Philosophiae Naturalis Principla Mathematica , which described his three laws of motion. Newton used these laws to explain and explore the motion of physical objects and systems.

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The learning objectives in this section will help your students master the following standards:. Using the example of football players, point out that both the mass and the velocity of an object are important considerations in determining the impact of collisions. The direction as well as the magnitude of velocity is very important.

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