The physics of a bouncing ball can become particularly interesting for certain cases. For example, certain types of balls (such as SuperBalls) can be given a backspin and (after the bounce) the velocity and rotation of the ball will reverse direction._______ is the cause of the velocity and spin (rotation) reversal.Group of answer choicesgravityaccelerationforce

Kent is twirling a ball attached to a string in a clockwise direction. If Kent lets go of the string, which of the following describes the motion that the ball will take if there are no gravitational forces influencing the motion of the ball? A. It will fall straight to the ground. B. It will continue in a straight line. C. It will curve up and then fall to the ground. D. It will curve down and then turn back up.

If you’re spinning a ball on a string clockwise (as seen fromoverhead). Where does the ball go if the string snaps when theball reaches the back of the person

Bouncing BallYou are given an array 𝐴A of length 𝑁N, where each element represents either empty ground (𝐴𝑖=0A i​ =0) or a wall (a positive integer indicating the height of the wall).You can place a ball on any empty ground (that is, choose an index 𝑖i with 𝐴𝑖=0A i​ =0) and push it either to the right or to the left.When the ball hits a wall, it decreases the height of the wall it hit by 11, and then bounces back in the opposite direction. If the wall's height reaches 00, it becomes empty ground.The ball continues to move until it goes out of bounds.Determine the number of ways to place and push the ball so that all walls are destroyed. Two ways are considered different if either the starting index of the ball or the direction of the push is different.Input FormatThe first line contains a single integer 𝑇T, denoting the number of test cases.Each test case consists of two lines of input.The first line of each test case contains a single integer 𝑁N, denoting the size of the array 𝐴A.The second line of each test case contains 𝑁N space-separated integers 𝐴1,𝐴2,…,𝐴𝑁A 1​ ,A 2​ ,…,A N​ .𝐴𝑖=0A i​ =0 means the 𝑖i-th position is empty ground, and 𝐴𝑖>0A i​ >0 denotes a wall of height 𝐴𝑖A i​ at position 𝑖i.Output FormatFor each test case, print on a new line a single integer representing the number of ways all walls can be destroyed.Constraints1≤𝑇≤1041≤T≤10 4 3≤𝑁≤1053≤N≤10 5 0≤𝐴𝑖≤1090≤A i​ ≤10 9 The sum of 𝑁N over all test cases won't exceed 2⋅1052⋅10 5 .Sample 1:InputOutput441 0 0 251 1 0 1 152 4 0 5 031000 0 9992211Explanation:Test case 11: The ball can be placed at position 22 or 33 and pushed to the right.The ball hits the wall at position 44, making its height 11. It then bounces to the left direction.The ball hits the wall at position 11, making its height 00. It then bounces in th

If a ball hit with topspin contacts the ground with its linear speed less than its rotational speed:Question 15Answera.the bottom of the ball will be spinning backwards in relation to the ground, causing a forward reaction force on the ball which will decelerate the ballb.the bottom of the ball will be spinning backwards in relation to the ground, causing a forward reaction force on the ball which will accelerate the ball forwardc.the bottom of the ball will be spinning forwards in relation to the ground, causing a forward reaction force on the ball which will accelerate the ball forwardd.the bottom of the ball will be spinning forwards in relation to the ground, causing a backward reaction force on the ball which will decelerate the balle.the bottom of the ball will be spinning backwards in relation to the ground, causing a backward reaction force on the ball which will decelerate the ball

Hannah’s class plays kickball at recess. The ball is rolling toward Hannah. She kicks the ball. It moves in the opposite direction. Which type of force caused the ball to change direction? A. gravity B. friction C. pull D. push