Velocity. C. Momentum. D. Acceleration. 相关知识点: 试题来源: 解析 C。解析:The law of conservation of momentum states that in an isolated system, the total momentum remains constant.(动量守恒定律指出在一个孤立系统中,总动量保持不变。)
Any object moving on a circular path will never have a constant velocity because the direction of the object changes every instant. However, the object may have constant speed. Notice that from the definition of velocity, you can see that a velocity is changing whenever the speed, the ...
百度试题 结果1 题目 An object with a mass of 5kg is moving at a constant velocity of 10m/s. What is the net force acting on the object? A. 10N B. 20N C. 30N D. 0N 相关知识点: 试题来源: 解析 D 反馈 收藏
So, the velocity of the egg after 2.60 seconds is -25.5 meters per second. Velocity is commonly reported as an absolute value (only positive), but remember that it's a vector quantity and has direction as well as magnitude. Usually, moving upward is indicated with a positive sign and down...
The equations of motion in free-fall that we are going to use in this particular problem for the required velocity of the object are shown below: h=ut+12gt2v=u+gt, where, u is the initial velocity of the object, t is the total time of motion. g is the...
We are given a ball with an initial velocity of 10 m/s for 2 seconds. In this case, we could assume that the ball is not subjected to any other...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our expe...
A toy car is pushed horizontally off a 1.5 m tall countertop. If the car has a range of 4.7 m, what was its horizontal velocity? A 71-kg student traveling in a car with a constant velocity has a kinetic energy of 2.0 x 104 J. What is the speedometer reading of...
Step1 –Calculate the Velocity of the First iteration (Sprint) At the end of each iteration, the team adds up effort estimates associated with user stories that were completed during that iteration. This total is called velocity. An agile team has started work on an iteration, planning to com...
According to the quantity theory of money, the general price level of goods and services is proportional to the money supply in an economy—assuming the level of real output is constant and the velocity of money is constant. The same forces that influence the supply and demand of any commodit...
1, which shows how the reflector point is dispersed further up dip for increasing offset. For constant velocity, a necessary and linked property of DMO is that, after its application, events with every and any dip stack with the same moveout velocity. For a complex overburden such a ...