Exploding rocket A rocket accelerates upward with total acceleration a. It explodes time tafter liftoff and breaks into two fragments, one four times as massive as the other. The less massive fragment then travels upward to reach a maximum height above the explosion of h, while the more massive fragment travels in an unknown direction with initial velocity vo (Note that the acceleration of the rocket stops after the explosion). This is a 1-dimensional problem.

Exploding rocket A rocket accelerates upward with total acceleration a. It explodes time tafter liftoff and breaks into two fragments, one four times as massive as the other. The less massive fragment then travels upward to reach a maximum height above the explosion of h, while the more massive fragment travels in an unknown direction with initial velocity vo (Note that the acceleration of the rocket stops after the explosion). This is a 1-dimensional problem.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 69P

See similar textbooks

Similar questions

A 1500kg sport car is moving westbound at 20m/s on a level road when it collided with a 4000kg truck driving east on the same road at 15m/s. The two vehicles remain locked together after the collision. a)what are is the magnitude of the velocity of the two vehicles just after the collision?
A meter stick is held vertically above your hand, with the lower end between your thumb and first finger. When you see the meter stick released, you grab it with those two fingers. You can calculate your reaction time from the distance the meter stick falls, read directly from the point where your fingersgrabbed it. (a) Derive a relationship for your reaction time in terms of this measured distance, d. (b) If the measured distance is 17.6 cm, what is your reaction time?
A rubber ball is shot straight up from the ground with speed vo. Simultaneously, a second rubber ball at height h directly above the first ball is dropped from rest. At what height above the ground do the balls collide? Your answer will be a symbolic expression in terms of vo, h, and g. What is the maximum value of h for which a collision occurs before the first ball falls back to the ground?
this is the problem that I was given. I am asked to find the horizontal distance to collision which I found by distance/height=tan(theta). I am asked to calculate time ofcollision which I did by taking distance/speed (in km/s). I am also asked to calculate the constant A from the accleration equation. I find A by taking the intgral of the acceleration twice to find my position formula. I plug in zero for t to get A/b^2=position. I find position by taking pythagorean theorem of height and distance, then multiply what I get by b^2. My reasoning is wrong somehwere as I keep getting the wrong answers (the answers I get are shown in the second picture). Can you please exlain where I am going wrong and provide a correct example/reasoning?
The first active volcano observed outside the earth was discovered in 1970 on Io, one of the moons of jupiter. The volcano was observed ejecting material to the height of about 3x105m. Given the acceleration of gravity on Io is 1.8 m/s2. Find: a. The initial velocity of the ejected material. b. What is the velocity at half that height?
Unreasonable results A dolphin in an aquatic show jumps straight up out of the water at a velocity of 15.0 m/s. (a) List the knowns in this problem. (b) How high does his body rise above the water? To solve this part, first note that the final velocity is now a known, and identify its value. Then, identify the unknown and discuss how you chose the appropriate equation to solve for it. After choosing the equation, show your steps in solving for the unknown, checking units, and discuss whether the answer is reasonable. (c) How long a time is the dolphin in the air? Neglect any effects resulting from his size or orientation.
Heather and Jerry are standing on a bridge 46m above a river.Heather throws a rock straight down with a speed of 20 m/s. Jerryat the exact same instant of time, throws a rock straight up withthe same speed. Ignore air resistance. Question: A) How much time elapses between the first splash and thesecond? B) Which rock has the faster speed as it hits the water?
A child shot a toy gun at a target right over his head. If the child does not hit anything and the bullet has an initial velocity of 65.0 m/s, (a) where will the bullet be after 5.20 seconds? (b) What is the bullet's velocity after 5.20 seconds?
An unwary football player collides with a padded goalpost while running at a velocity of 8.50 m/s and comes to a full stop after compressing the padding and his body 0.450 m. (a) How long does the collision last? ________ s(b) What is his deceleration? ________m/s2
An express train passes through a station. It enters with an initial velocity of 22.0 m/s and decelerates at a rate of 0.150m/s2 as it goes through. The station in 210.0 m long. (a) How fast is it going when the nose leaves the station? (b) How long is the nose of the train in the station? (c) If the train is 130 m long, what is the velocity of the end of the train as it leaves? (d) When does the end of the train leave the station?
Suppose that a person takes 0.5 s to react and move his hand to catch an object he has dropped. (a) How far does the object tall on Earth, where g=9.8m/s2 ? (b) How far does the object fall on the Moon, where the acceleration due to gravity is 1/6 of that on Earth?
After a long and grueling race, two cadets, A and B, are coming into the finish line at the Marine Corps marathon. They move in the same direction along a straight path; the position-versus-time graphs for the runners are shown in Figure P2.7 for a minute near the end of the race. a. At time t1 is the speed of cadet B greater than, less than, or equal to the speed of cadet A? b. At time t2, is cadet B speeding up, slowing down, or moving with constant speed? c. From time t = 0 to time t = 60 s, is the average speed of cadet B greater than, less than, or equal to the average speed of cadet A? Explain.