3m v =0 7. A projectile is launched at a 53° angle with a speed of 100 m/s. At the highest point, the projectile explodes into two parts, one three times heavier than the other. After the explosion, the lighter fragment's initial velocity is zero. a. What is the speed of the projectile just before the explosion? [60.2] b. What is the speed v of the heavier fragment just after the explosion? i) How high is the projectile when the explosion happens? ii) How long does it take each piece to reach the ground? с. d. i) How far horizontally is the projectile when the explosion happens? ii) If the projectile hadn't exploded, how far from the launch point would it have landed? (480.8m & 961.6m] e. What is the location of each fragment from the launch point when they hit the ground? [480.2m, 1121.76 m] f. i) What is the location of the center of mass of the two fragments when they land? ii) How does this compare with your answer in part d.ii?

3m v =0 7. A projectile is launched at a 53° angle with a speed of 100 m/s. At the highest point, the projectile explodes into two parts, one three times heavier than the other. After the explosion, the lighter fragment's initial velocity is zero. a. What is the speed of the projectile just before the explosion? [60.2] b. What is the speed v of the heavier fragment just after the explosion? i) How high is the projectile when the explosion happens? ii) How long does it take each piece to reach the ground? с. d. i) How far horizontally is the projectile when the explosion happens? ii) If the projectile hadn't exploded, how far from the launch point would it have landed? (480.8m & 961.6m] e. What is the location of each fragment from the launch point when they hit the ground? [480.2m, 1121.76 m] f. i) What is the location of the center of mass of the two fragments when they land? ii) How does this compare with your answer in part d.ii?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter11: Gravity, Planetary Orbits, And The Hydrogen Atom

Section: Chapter Questions

Problem 57P

See similar textbooks

Similar questions

In a laboratory experiment, an electron with a kinetic energy of 50.5 keV is shot toward another electron initially at rest (Fig. P11.50). (1 eV = 1.602 1019 J) The collision is elastic. The initially moving electron is deflected by the collision. a. Is it possible for the initially stationary electron to remain at rest after the collision? Explain. b. The initially moving electron is detected at an angle of 40.0 from its original path. What is the speed of each electron after the collision? FIGURE P11.50
A thin metal rod of mass 1.8 kg and length 0.9 m is at rest in outer space, near a space station (see figure below). A tiny meteorite with mass 0.08 kg traveling at a high speed of 210 m/s strikes the rod a distance 0.2 m from the center and bounces off with speed 60 m/s as shown in the diagram. The magnitudes of the initial and final angles to the x axis of the small mass's velocity are θi= 26° and θf= 82°. Afterward, what is the velocity of the center of the rod? (Express your answer in vector form.) Afterward, what is the angular velocity ω→ of the rod? (Express your answer in vector form.)
(II) An atomic nucleus at rest decays radioactively into analpha particle and a different nucleus. What will be the speedof this recoiling nucleus if the speed of the alpha particleis 2.8x105 m/s ?Assume the recoiling nucleus has a mass57 times greater than that of the alpha particle
One way to attack a satellite in Earth orbit is to launch a swarm of pellets in the same orbit as the satellite but in the opposite direction. Suppose a satellite in a circular orbit 500 km above Earth’s surface collides with a pellet having mass 4.0 g. (a) What is the kinetic energy of the pellet in the reference frame of the satellite just before the collision? (b)What is the ratio of this kinetic energy to the kinetic energy of a 4.0 g bullet from a modern army rifle with a muzzle speed of 950 m/s?
One way to attack a satellite in Earth orbit is to launch a swarm of pellets in the same orbit as the satellite but in the opposite direction. Suppose a satellite in a circular orbit 680 km above Earth's surface collides with a pellet having mass 3.2 g. (a) What is the kinetic energy of the pellet in the reference frame of the satellite just before the collision? (b) What is the ratio of this kinetic energy to the kinetic energy of a 3.2 g bullet from a modern army rifle with a muzzle speed of 730 m/s?
A 10 kg projectile is fired from a cannon at an angle of 60o above the horizontal and with an initial velocity of 300 ms-1. At the highest point of its flight, the projectile explodes into two fragments with equal mass. One of the fragments falls vertically downwards with an initial velocity of zero. (a) How far from the cannon does the other fragment strike the ground (assume the ground is level)? (b) How much energy is released during the explosion?
A 2.5 gg particle has momentum 5.0×105 kg⋅m/skg⋅m/s What is the particle's speed? v/c=
Two manned satellites approaching one another at a relative speed of 0.150 m/s intend to dock. The first has a mass of 4.00 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. Assume that the positive direction is directed from the second satellite towards the first satellite. (a) Calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest. (b) What is the loss of kinetic energy in this inelastic collision? (c) Repeat both parts, in the frame of reference in which the second satellite was originally at rest.final velocity: loss of kinetic energy:
A 64.5 kgkg astronaut is doing a repair in space on the orbiting space station. She throws a 2.35 kgkg tool away from her at 3.60 m/sm/s relative to the space station. With what speed will she begin to move? Express your answer with the appropriate units. n what direction will she begin to move? In what direction will she begin to move? She moves in the direction in which she throws the tool. She moves opposite to the direction in which she throws the tool.
An object, with mass 94 kg and speed 19 m/s relative to an observer, explodes into two pieces, one 5 times as massive as the other; the explosion takes place in deep space. The less massive piece stops relative to the observer. How much kinetic energy is added to the system during the explosion, as measured in the observer's reference frame?
n unstable particle at rest breaks up into two fragments of unequal mass. The mass of the lighter fragment is equal to 3.60 ✕ 10−28 kg and that of the heavier fragment is 1.75 ✕ 10−27 kg. If the lighter fragment has a speed of 0.893c after the breakup, what is the speed of the heavier fragment? c
A boy throws a ball with a speed v at a vehicle that is approaching him with a speed V. After bouncing from the vehicle, the bail hits the boy with a speed(1)v. (2)v+V. (3)v+2V. (4)v+4V