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The ball hits the floor with a speed of 5.4 m / s at an angle of 65 ∘ to the vertical. If the ball rebounds with the same speed and angle, what was the impulse delivered to it by the floor?

It just doesn't seem right. Oftentimes we say, "But a bowling ball weighs more than a golf ball doesn't that mean gravity is pulling on it more?" Well, there's a distinction to be made here.

Its speed will be 20 m/s after the next second and 30 m/s after three seconds. That means that every second the speed increases by 10. This is gravity. Now how about figuring out how deep the well is. Let’s assume that you hear the rock it the bottom after three seconds. Therefore it will have a speed of 30 m/s just before it hits the ground.

Mar 30, 2010 · A 0.465 kg ball is dropped and reaches a speed of 1.41 m/s just before it hits the ground. It rebounds with a speed of 1.07 m/s. What is the magnitude of the change in the ball's momentum? What is the direction of the total momentum? A) Towards the left. B) Downwards. C) Upwards. D) Towards the right. Thankss !

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So, just in terms of numbers, how fast is the fastest ever? [Note: only speeds attained by vehicles/objects containing human beings are being considered – unmanned NASA space probes do not count because robots have no emotions.] On the ground, the fastest speed clocked by a human being was 760 face-melting miles per hour.

A ball is tossed vertically upward from a height of 2 m with an initial velocity of 10 m/s. Just before the ball hits the ground, its velocity will be what? A. 10 m/s B. less than 10 m/s C. greater than 10 m/s D. not possible to predict Answer: C. greater than 10 m/s

(Referring to the previous problem.) Determine the speed (in m/s) of the ball just prior to hitting the ground. View Audio Solution. Problem 15: A Hot Wheels car rolls off a table at a speed of 3.45 m/s and hits the floor a distance of 118.8 cm from the table's edge. Determine the height (in cm) of the table. View Audio Solution. Problem 16:

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We can just use the formula of laws of motion, V²-u²= 2as Where initial velocity (u)=0 V²= 2as V²= 2×10×5 V= 10m/s. The ball acquires the velocity of 10m/s before Fall to the ground. We doesn't need the mass for finding the velocity. Hope this helped you a little!!!

Feb 22, 2011 · (a) what is the speed just before it hits the ground? (b) how long does it take to reach the ground? Physics. Stephanie serves a volleyball from a height of 0.78 m and gives it an initial velocity of +7.7 m/s straight up. How high will the volleyball go? The acceleration of gravity is 9.81 m/s^2. How long will it take the ball to reach