A pitched 135 g baseball, in horizontal flight with a speed ?1 of 38 m/s, is truck by a batter. After leaving the bat, the ball travels in the opposite direction with the speed of ?2 = 3
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- A 0.350 kg lump of clay is dropped from a height of 1.15 monto the floor. It sticks to the floor and does not bounce. What is the magnitude of the impulse ? imparted to the clay by the floor during the impact? Assume that the acceleration due to gravity is ?=9.81 m/s2. The force exerted by the floor on the clay is plotted as a function of time in the figure. What must have been the maximum force ?max exerted by the floor on the clay?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 NTwo identical pucks collide on an air hockey table. One puck starts at rest. The incoming puck has a speed of 6.00 m/s and scatters to an angle of 30.0º. Use the fact that Θ1 – Θ2 = 90º for elastic collisions of objects that have identical masses — in other words, the pucks move apart at a right angle. (a) Sketch the collision, with angles labeled. (b) What is the velocity (magnitude and direction) of the second puck after it is struck?
- A 1-oz bullet is traveling with a velocity of 1400 ft/s when it impacts and becomes embedded in a 5-lb wooden block. The block can move vertically without friction. Determine (a) the velocity of the bullet and block immediately after the impact, (b) the horizontal and vertical components of the impulse exerted by the block on the bullet.A(n) 0.56 kg softball is pitched at a speed of12 m/s. The batter hits it back directly at thepitcher at a speed of 28 m/s. The bat acts onthe ball for 0.017 s.What is the magnitude of the impulse imparted by the bat to the ball?Answer in units of N · s. What is the magnitude of the average forceexerted by the bat on the ball?Answer in units of N.A 0.12-kg ball is moving at 6 m/s when it is hit by a bat, causing it to reverse direction and have a speed of 14 m/s. What is the magnitude of the linear impulse experienced by the ball?
- A ball of mass .62 kg has an initial velocity of 7 m/s and moves at an angle of 32° above the +x-direction. The ball hits a vertical wall and bounces off so that it is moving 32° above the -x-direction with the same speed. (a) What is the magnitude of the impulse delivered by the wall? Number (b) What is the direction of the impulse delivered by the wall? OO O O +x-direction -x-direction +y-direction -y-direction None of the aboveA handball of mass 0.200 kg, traveling horizontally at 25.0 m/s , strikes a wall and rebounds at 16.0 m/s . What is the magnitude of the impulse in(Ns) imparted on the ball?Q.10. A bullet of mass m = 20 g is fired horizontally into a wooden block, of mass M = 1 kg, resting on a horizontal table. The speed of the bullet just before reaching %3D the block is v, = 600 m/s. If the bullet imbeds in the block, then the speed of the (bullet, block) system immediately after the collision is: a. v = 0 b. v = 14.634 m/s %3D M c. v = 17.475 m/s d. v = 11.765 m/s m + M
- he figure shows an approximate plot of force magnitude F versus time t during the collision of a 56 g Superball with a wall. The initial elocity of the ball is 35 m/s perpendicular to the wall, in the negative direction of an x axis. It rebounds directly back with pproximately the same speed, also perpendicular to the wall. What is Fmax, the maximum magnitude of the force on the ball from the all during the collision? Number i .98 Units N F 9 t(ms) bA baseball player pitches a fastball toward home plate at a speed of 41.0 m/s. The batter swings, connects with the ball of mass 335 g, and hits it so that the ball leaves the bat with a speed of 37.0 m/s. Assume that the ball is moving horizontally just before and just after the collision with the bat. (a) What is the impulse delivered to the ball by the bat? Enter a positive value if the impulse is in the direction the bat pushes the ball and enter a negative value if the impulse is in the opposite direction the bat pushes the ball. ____kg·m/s (b) If the bat and ball are in contact for 3.00 ms, what is the magnitude of the average force exerted on the ball by the bat? ____kNA 0.0600 kg ball is traveling horizontally at 28.5 m/s when it is hit by a badminton racquet. The ball then moves in the opposite direction, also horizontally, at a speed of 44.5 m/s. Take the initial velocity of the ball to be in the -x-direction. (a) What is the impulse delivered to the ball by the badminton racquet? (Give the x-component in Ns. Indicate the direction with the sign of your answer.) ÎN S (b) Some work is done on the system of the ball and some energy appears in the ball as an increase in internal energy during the collision between the ball and the racket. What is the quantity W - AEint for the ball? (Give your answer in J.)