Question

Notify Me Bookmark

(9a) A fireworks rocket is moving at a speed of v0 = 41.7 m/s. The rocket suddenly breaks into two pieces of equal mass, which fly off at different velocities as shown in the drawing. What is the magnitude of v1? (9b) What is the magnitude of v2?

(9a) A fireworks rocket is moving at a speed of v0 = 41.7 m/s. The rocket suddenly breaks into two pieces of equal mass, which fly off at different velocities as shown in the drawing. What is the magnitude of v1? (9b) What is the magnitude of v2?

Image text
(9a) A fireworks rocket is moving at a speed of v 0 = 41.7 m / s . The rocket suddenly breaks into two pieces of equal mass, which fly off at different velocities as shown in the drawing. What is the magnitude of v 1 ? ◻ Submit Answer Tries 0 / 10 (9b) What is the magnitude of v 2 ? ◻

Detailed Answer

0 0

Please enter your email here. You will get email when this question is answered by our tutor.

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Notify me Login Sign Up

Similar/Related Questions

A fireworks rocket is moving at a speed of 56.820441163779 m/s. The rocket suddenly breaks into two pieces of equal mass, which fly off with velocities v1 and v2, as shown in the drawing. What is the magnitude of (a) v1 and (b) v2? (a) Number Units (b) Number Units
Solution
0 0

(a) In a minor rail yard accident, a runaway goods truck of mass 1.85×104 kg collides at u = 20.0 ms−1 with a stationary truck of mass 2.20×104 kg, as shown in Figure 3. The trucks lock together and travel at the same speed after the collision. Assume friction is negligible. Figure 3 Sketch of the runaway and stationary goods trucks, for use in Question 10. (i) Show that the speed of the trucks after the collision is 9.14 ms−1. (ii) One of the truck wheels can be modelled as a solid disk of radius 4.60×10−1 m and moment of inertia 36.5 kgm2. Calculate the magnitude of the wheel's angular momentum after the collision. (iii) The truck's linear velocity vector is in the positive x-direction using the Cartesian coordinate system shown in Figure 3. What is the direction of the wheel's angular momentum vector? Briefly explain your reasoning. (b) The train driver sounds the train's whistle. The whistle is a pipe that is open at one end and closed at the other, and it has a length of 0.480 m. The speed of sound in air is 343 ms−1. (i) Sketch the standing wave pattern of the air pressure in the whistle for its fundamental resonant frequency. Clearly indicate the open and closed ends of the whistle pipe. (ii) Hence calculate the frequency of the sound made by the whistle's fundamental resonance. (c) An observer standing on a bridge above the train track hears the whistle as the train approaches at a speed of 40.0 ms−1. (i) Show that the whistle frequency perceived by the observer is 13.2% greater than the frequency perceived by the driver. (ii) Describe how the sound of the whistle, as heard by the observer, will change as the train approaches and goes past the bridge.

Solution
0 0

Part A A 20.0 kg projectile is fired at an angle of 60.0∘ above the horizontal with a speed of 80.0 m/s. At the highest point of its trajectory, the projectile explodes into two fragments with equal mass, one of which falls vertically with zero initial speed. Ignore air resistance. How far from the point of firing does the other fragment strike if the terrain is level? Express your answer with the appropriate units. Submit Request Answer Part B How much energy is released during the explosion? Express your answer with the appropriate units. ΔE = Value Units

Solution
2 0