A 0.238-kg volleyball approaches a player horizontally with a speed of 16.7 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 22.0 m/s. (a) What impulse is delivered to the ball by the player? kg-m/s (b) If the player's fist is in contact with the ball for 0.060 0 s, find the magnitude of the average force exerted on the player's fist. Need Heln? Rand l
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- A cruise ship with a mass of 1.83 x 10' kg strikes a pier at a speed of 0.652 m/s. It comes to rest 4.94 m later, damaging the ship, the pier, and the tugboat captain's finances. Calculate the average force (in N) exerted on the pier using the concept of impulse. (Hint: First calculate the time it took to bring the ship to rest. Assume the ship moves in the positive direction. Indicate the direction with the sign of your answer.)A ball falls from height of 20.0 m, hits the floor, and rebounds vertically upward to height of 15.0 m. Assume that m ball = 0.385 kg. (a) What is the impulse (in kg. m/s) delivered to the ball by the floor? magnitude x direction 979.1 Assume the only impulse delivered to the ball is from the floor, which equals the change in momentum of the ball. Find the initial and final speeds of the ball using conservation of mechanical energy, and calculate Ap noting that all the motion is in the y-direction. kg. m/s up ✓✓ (b) If the ball is in contact with the floor for 0.0300 seconds, what is the average force (in N) the floor exerts on the ball? magnitude 19.223 x Use the impulse-momentum theorem and the result from part (a) to find the force, given that the contact time interval is 0.0300 s. N up direction ✓✓Two objects with mass (mı = 8 kg and m2 = 5 kg) are moving towards each other with velocities (v1 = 13 () and v2 = 6 (-±)). a) If the two objects undergo an inelastic collision and stick together, find the post-collision velocity of the combined objects. b) What is the impulse of each object in the scenario from part (a)? ) If the collision from part (a) took (0.2 seconds), what is the force that each object experienced? a) If the two objects instead undergo a perfectly elastic collision, find the post-collision velocities of each object.
- A soccer ball with a mass of 0.427 kg approaches a player horizontally with a speed of 14.0 m/s. The player kicks the ball with her foot, which causes the ball to move in the opposite direction with a speed of 22.3 m/s. (a) What magnitude of impulse (in kg · m/s) is delivered to the ball by the player? kg · m/s (b)What is the direction of the impulse delivered to the ball by the player? - In the same direction as the ball's initial velocity - Opposite to the ball's initial velocity - Perpendicular to the ball's initial velocity - The magnitude is zero. (c) If the player's foot is in contact with the ball for 0.0600 s, what is the magnitude of the average force (in N) exerted on the player's foot by the ball?A stone is dropped from a height of h1 = 3.55 m above the ground. After it bounces, it only makes it to a height h2 = 2.37 m above the ground. The stone has mass m = 0.148 kg. a) What is the magnitude of the impulse I, in kilogram meters per second, the stone experienced during the bounce? b) If the stone was in contact with the ground for t = 0.153 s, what was the magnitude of the constant force F acting on it, in newtons? c) How much energy, in joules, did the stone transfer to the environment during the bounce?During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.149 kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 14.1 m/s, shatters the glass as it passes through, and leaves the window at 11.3 m/s with no change of direction. Calculate the magnitude of this impulse (a positive number). The ball is in contact with the glass for 0.0104 s as it passes through. Find the magnitude of the average force of the glass on the ball (a positive number).
- A professional golfer is examining a video of a practice swing. The high-speed footage shows that his club is in contact with the ball (which was initially at rest on the tee) for only Ar=0.571 ms, and the radar gun clocks the speed of the ball as = 176 mph after it comes off the club. The golf ball has a mass of my = 45.9 g. What is the magnitude of the impulse imparted to the ball by the club? magnitude of the impulse: What is the magnitude of the average force of contact between the club and the ball? magnitude of the average force of contact: kg m NPlease help with following question!24.A 2.4 kg ball drops vertically onto a floor, hitting with a speed of 25 m/s. It rebounds with an initial speed of 10 m/s. (a) What impulse acts on the ball during the contact?(b) If the ball is in contact with the floor for 0.020 s, what is the magnitude of the average force on the floor from the ball? a. 42 kg m/s, 2100N b. 84 kg m/s, 4200N c. 84 kg m/s, 2100N d.42 kg m/s, 4200N
- A 6 [kg] ball bounces perfectly elastically off of a stationary wall. The impulse is measured to be 18 [kg][m]/[s]. What is the initial speed of the ball?Force of a Baseball Swing. A baseball has mass 0.141 kg. If the velocity of a pitched ball has a magnitude of 46.0 m/sm/s and the batted ball's velocity is 58.0 m/sm/s in the opposite direction, find the magnitude of the change in momentum of the ball and of the impulse applied to it by the bat. If the ball remains in contact with the bat for 1.6 msms , find the magnitude of the average force applied by the bat.A 0.269 -kg volleyball approaches a player horizontally with a speed of 12.6 m/s. the player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 22.5 m/s. A. what impulse is delivered to the player ? ( take the direction of the final velocity to be the positive direction. indicate the direction with the sign of the answer.) B. if the player's fist is in contact with the ball for 0.0600s find the magnitude force exerted on the player's fist.