4. A 60 kg woman, standing in the center of a circular frozen lake with a diameter of 100 meters, finds herself unable to walk to the shore as there is no friction between her and the lake ice. Fortunately she has in his possession a 1 kg revolver loaded with six .44 Magnum shells, each weighing 300 grams. A) In quick succession (effectively instantaneously) she fires off all 6 rounds (bullets) while aiming the gun due east. If the speed of each of the bullets is 400 m/s, how soon after firing will she reach the lake shore? B) If instead she had fired 2 rounds due east and 4 rounds towards the southwest, how soon would she have reached the shore? C) In each case, what is the center of momentum velocity, relative to the lake, of the whole women+gun+bullets system after she fires the gun?

4. A 60 kg woman, standing in the center of a circular frozen lake with a diameter of 100 meters, finds herself unable to walk to the shore as there is no friction between her and the lake ice. Fortunately she has in his possession a 1 kg revolver loaded with six .44 Magnum shells, each weighing 300 grams. A) In quick succession (effectively instantaneously) she fires off all 6 rounds (bullets) while aiming the gun due east. If the speed of each of the bullets is 400 m/s, how soon after firing will she reach the lake shore? B) If instead she had fired 2 rounds due east and 4 rounds towards the southwest, how soon would she have reached the shore? C) In each case, what is the center of momentum velocity, relative to the lake, of the whole women+gun+bullets system after she fires the gun?

Name: Time is simultaneous for all shots fired 4. A 60 kg woman, standing in
Uploaded: 2024-03-20T06:57:37.000Z
Channel: Bartleby
Description: Time is simultaneous for all shots fired 4. A 60 kg woman, standing in the center of a circular frozen lake with a diameter of 100 meters,finds herself unable to walk to the shore as there is no friction between her and the lake ice.Fortunately she h

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 28P: The vector position of a 3.50-g particle moving in the xy plane varies in time according to...

See similar textbooks

Similar questions

The vector position of a 3.50-g particle moving in the xy plane varies in time according to r1=(3i+3j)t+2jt2, where t is in seconds and r is in centimeters. At the same time, the vector position of a 5.50 g particle varies as r2=3i2it26jt. At t = 2.50 s, determine (a) the vector position of the center of mass of the system, (b) the linear momentum of the system, (c) the velocity of the center of mass, (d) the acceleration of the center of mass, and (e) the net force exerted on the two-particle system.
An 8 g bullet is fired horizontally into a stationary 9 kg block of wood and STICKS IN it. The block, which is free to move, has a velocity of 40 cm/s after impact. Find the initial velocity of the bullet. (Take note of the consistency of units). a. 250 m/s b. 450 m/s c. 450 cm/s d. 375 m/s
Realizing that he could not drive up a 35.0°, ice-covered hill because there was no friction, Rick Shun had stopped his car, of total mass 4.00 x 102 kg, at the bottom. He was struck in the rear by another car, of total mass 2.00 x 103 kg, travelling at 20.0 m/s. The two vehicles stuck together, with nothing breaking loose, and slid up the hill in a straight line. How far up the slope did the wreckage get before coming to rest?
An astronaut of mass 180 kg including his suit and jet pack wants to acquire a velocity of 1.8 m/s to move back toward his space shuttle. Assuming the jet pack can eject gas with a velocity of 61 m/s, what mass of gas will need to be ejected? Express your answer to two significant figures and include the appropriate units. m=__________
On a very muddy football field, a 110 kg linebacker tackles an 85 kg halfback. Immediately before the collision, the linebacker is slipping with a velocity of 8.8 m/s north and the halfback is sliding with a velocity of 7.2 m/s east. What is the velocity (magnitude and direction) at which the two players move together immediately after the collision?
A railway car of mass 1.37 x104kg, rolling at 20.0 km/h [N] collides with another railway car of mass 1.12 x104 kg, also initially rolling north, but moving slower. After the collision, the coupled cars have a velocity of 18.3 km/h [N]. What is the initial velocity of the second car?
14) A 3.0 kg mass moving on a frictionless surface explodes into three pieces of 1.0 kg each. After the explosion, the velocities of the pieces are: (1) 9.0 m / s, north; (2) 4.0 m / s, 30 ° south of west, and (3) 4.0 m / s, 30 ° south of east. What was the magnitude of the velocity of the 3.0-kg body before the explosion? Answers: a) 1.7 m/s b) 1.0 m/s c) 1.3 m/s d) 2.0 m/s e) 2.8 m/s
1) A toy car having mass m = 1.35 kg collides inelastically with a toy train of mass M = 3.70 kg.Before the collision, the toy train is moving in the positive x-direction with a velocity of Vi = 2.10 m/s and the toy car is also moving in the positive x-direction with a velocity of vi = 4.70 m/s. Immediately after the collision, the toy car is observed moving in the positive x-direction with a velocity of 2.05 m/s. (a) Determine Vf, the final velocity of the toy train. ____m/s(b) Determine the change ΔKE in the total kinetic energy. Assume friction and the rotation of the wheels are not important so that they do not affect ΔKE. ____J Question 6.1b:2) A block with mass M = 6.10 kg is sliding in the positive x-direction at Vi = 8.90 m/s on a frictionless surface when it collides elastically in one dimension with a stationary block with mass m = 1.40 kg. Determine the velocities, Vf and Vf of the objects after the collision. Vf= ___m/s Vf=___m/s
an object (A) of mass ma=17.0 kg is moving due east with a speed vA= 8.15 m/s, while the object (B)of mass mB=29.5 kg is moving in a direction that makes an angle 42 degrees north of east with a speed vB=5.10m/s. The two objects collide and stick together in a completely inelastic collision. Find the magnitude of the final velocity of the two-object system after the collision.
A 2.7 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed of 500 m/s, goes completely through the block, emerging at a speed of 220 m/s. What is the speed of the block immediately after the bullet exits?
An object of mass m1=2 kg moving with velocity 12 m/s, collides head-on with an object whose mass is m2=6 kg and velocity is 1 m/s. Given that the collision is elastic, what are the final velocities of the two objects. Neglect friction.
A 4.0 kg mess kit sliding on a frictionless surface explodes into two 2.0 kg parts, one moving at 3.6 m/s, due north, and the other at 4.8 m/s, 41° north of east. What is the original speed of the mess kit?