What is the acceleration of a rock at the top of its trajectory when thrown straight upward? Explain whether or not the answer is zero by using the equation a=f/m as a guide to your thinking. 一枚石子被笔直的扔到空中,但它到达弹道顶端时它的加速度是多少?用公式 a=f/m 来好好思考一下...
Full size image At 0 g(assuming no air resistance and a constant elastic bounce against the ceiling),Tis related toVby the hyperbolic equationT = K/V, whereKcorresponds to the distance between the ceiling and the hand at the time of release plus the distance at the time of catch,...
Explain why the speed of an object decreases when an object is thrown upward using gravitational acceleration. Why do all free falling objects have the same acceleration? Why does the angle of the incline increase as the parallel component of the object's weight dow...
Homework Statement While on planet X, an object is thrown vertically upward with an initial velocity of 5m/s. If this object returns to the point of release in 3s, what is the acceleration of a free falling object on this planet? Homework Equations a=vf-vi/t The Attempt at a... ...
At one moment an object in free fall is moving upward with a velocity of 30m/s. How fast would the object move after 5s? An object of mass 10 kg is dropped from a 20 m cliff. What is the velocity just before the object strikes the ground? One second after being thrown straight dow...
Homework Statement For small, slowly falling objects, the assumption made in equation (1) (see below) is good. For larger, more rapidly falling objects, it is more accurate to assume that the magnitude of the drag force is proportional to the square of the velocity with the force... tyler...
解释一下。 What is the acceleration of a rock at the top of its trajectory when thrown straight upward? of is trajeccory drtert thirodrt strarght apoard. Explain whether or not the answer is zero by using the equation a=f/m as a guide to your thinking. 一枚石子被笔直的扔到空中,但...
Yes, the normal force will decrease if a crane pulls the object upward while it is resting on a surface. A surface's normal force is the force it...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a questio...
Explain why the speed of an object decreases when an object is thrown upward using gravitational acceleration. Which law of motion defines force? What two factors affect the gravitational force between two objects? What are the four main types of resistance forces? The instantaneous velocity of an...
An object is thrown vertically upward. a) What are its velocity and acceleration when it reaches its highest altitude? b) What is its acceleration on its way down half a meter above the ground? An object is thrown vertically upward. a) What are its velocity and acceleration...