What is your new speed, while holding the flour stack? Suppose you now try to rid yourself of the extra weight by throwing the flour sack straight up. What will be your speed while the sack is in the air? (Same/increase/decrease) Problem 8.15 - Enhanced - with SolutionYou (mass 55 kg) are riding your frictionlessskateboard (mass 5.0 kg) in a straight line at aspeed of 4.8 m/s when a friend standing on abalcony above you drops a 3.5 kg sack of flourstraight down into your arms.For related problem-solving tips and strategies, youmay want to view a Video Tutor Solution of A head-on collision.

Name: What is your new speed, while holding the flour stack? Suppose you now
Uploaded: 2024-03-20T06:56:46.000Z
Channel: Bartleby
Description: What is your new speed, while holding the flour stack? Suppose you now try to rid yourself of the extra weight by throwing the flour sack straight up. What will be your speed while the sack is in the air? (Same/increase/decrease) Problem 8.15 - Enhan

Apply the conservation of energy. Pi = Pf (m1+ m2)V1 = (m1 + m2 + m3)V2 (55+5)*4.8 = (55+5 + 3.5)*V2…

Science

Physics

What is your new speed, while holding the flour stack? Suppose you now try to rid yourself of the extra weight by throwing the flour sack straight up. What will be your speed while the sack is in the air? (Same/increase/decrease)

What is your new speed, while holding the flour stack? Suppose you now try to rid yourself of the extra weight by throwing the flour sack straight up. What will be your speed while the sack is in the air? (Same/increase/decrease)

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter9: Momentum And Its Conservation

Section: Chapter Questions

Problem 96A

See similar textbooks

Similar questions

Squids are the fastest marine invertebrates, using a powerful set of muscles to take in and then eject water in a form of jet propulsion that can propel them to speeds of over 11.5 m/s. What speed (in m/s) would a stationary 1.10 kg squid achieve by ejecting 0.115 kg of water (not included in the squid's mass) at 3.50 m/s? Neglect other forces, including the drag force on the squid. HINT= Apply conservation of momentum.
A 730-N man stands in the middle of a frozen pond of radius5.0 m. He is unable to get to the other side because of a lackof friction between his shoes and the ice. To overcome thisdifficulty, he throws his 1.2-kg physics textbook horizontallytoward the north shore at a speed of 5.0 m/s. How long doesit take him to reach the south shore?
A 60-kg archer stands at rest on frictionless ice and fires a 0.030-kg arrow horizontally at 85 m/s (as shown). With what velocity does the archer move across the ice after firing the arrow?
In the figure here, a 7.0 g bullet moving directly upward at 870 m/s strikes and passes through the center of mass of a 6.8 kg block initially at rest. The bullet emerges from the block moving directly upward at 410 m/s. To what maximum height does the block then rise above its initial position?
In the “Fosbury flop” method of high jumping, named for thetrack and field star Dick Fosbury, an athlete’s center of mass maypass under the bar while the athlete’s body passes over the bar. Explain how this is possible
During a football game, the 80 kg running back is moving forward with a speed of 9.0 m/s. He is met at the goal line by a 130 kg linebacker traveling at 7 m/s. The running back is traveling at a 40◦ from the goal line, and the linebacker is running at a 30◦ , as shown in the figure. The linebacker collideswith the running back and wraps him up. What is the final velocity (magnitude and direction) of the running back? Does he score?
A bullet of mass m = 8.00 g is fired into a block of mass M = 210 g that is initially at rest at the edge of a table of height h = 1.00 m (see figure below). The bullet remains in the block, and after the impact the block lands d = 2.30 m from the bottom of the table. Determine the initial speed of the bullet. _______________m/s
A 60-kg soccer player jumps vertically upwards and headsthe 0.45-kg ball as it is descending vertically with a speed of25 m/s. (a) If the player was moving upward with a speed of4.0 m/s just before impact, what will be the speed of the ballimmediately after the collision if the ball rebounds verticallyupwards and the collision is elastic? (b) If the ball is in contactwith the player’s head for 20 ms, what is the average accelerationof the ball? (Note that the force of gravity may be ignoredduring the brief collision time.)
An bullet ofmass m = 8.00 g isfired into a blockof mass M = 250 gthat is initially atrest at the edgeof a table ofheight h = 1.00 m(Fig. P6.42). Thebullet remains in the block, and after the impact the block landsd = 2.00 m from the bottom of the table. Determine the initialspeed of the bullet.
A 29500-kg open railroad car, initially coasting at 0.725 m/s with negligible friction, passes under a hopper that dumps 102500 kg of scrap metal into it. What is the final speed, in meters per second, of the loaded freight car? How much kinetic energy is lost, in joules, when the freight car receives this scrap metal? Ignore the free-fall kinetic energy of the scrap metal.
Consider an 1D elastic collision where particle m1 hits stationary particle m2 lying on a friction-less surface. Assume that m2 = 4m1. Before the collision, the center of mass of the two block system had a speed of 5 m/s. Afterward, what are the speeds of (a) the center of mass and (b) particle 2? A person drags a box across a floor by applying a horizontal force of 9 N. The kinetic fric-tional force acting on the box has magnitude 5 N. As the box is dragged through 0.70 m along the way,what are (a) the work done by the person’s applied force and (b) the increase in thermal energy of thebox and floor? c) What exactly makes up the system in this problem?
A 65.0 - kg person throws a 0.045 0 - kg snowball forwardwith a ground speed of 30.0 m/s. A second person, with a massof 60.0 kg, catches the snowball. Both people are on skates.The first person is initially moving forward with a speed of2.50 m/s, and the second person is initially at rest. What arethe velocities of the two people after the snowball isexchanged? Disregard friction between the skates and the ice.