What is the bicycle speed after the throw?

  • Thread starter Thread starter sensesfail
  • Start date Start date
  • Tags Tags
    Bicycle Speed
Click For Summary
SUMMARY

The discussion centers on calculating the bicycle speed after Tony throws his 6 kg pack while coasting at 5 m/s. The initial momentum of the system, consisting of Tony (55 kg), the bicycle (5 kg), and the pack, is established at 330 kg*m/s. After the pack is thrown forward at 1 m/s relative to the bicycle's speed, the final momentum remains 330 kg*m/s, confirming that the bicycle's speed after the throw is 5.41 m/s.

PREREQUISITES
  • Understanding of momentum conservation principles
  • Basic knowledge of mass and velocity calculations
  • Familiarity with the concept of relative velocity
  • Ability to perform algebraic manipulations
NEXT STEPS
  • Study the principles of conservation of momentum in closed systems
  • Learn about relative velocity and its applications in physics
  • Explore real-world applications of momentum in sports and transportation
  • Investigate the effects of mass changes on velocity in dynamic systems
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and momentum, as well as educators seeking examples for teaching these concepts.

sensesfail
Messages
8
Reaction score
0

Homework Statement



Tony of mass 55kg coasts on his bi cycle of mass 5 kg at a constant speed of 5m/s carrying a 6kg pack. tony throws his pack forward, in the direction of his motion, at 1 m/s relative to the speed of bicycle just before the throw.

Initial momentum of system (tony, bicycle, pack) is 330 kg* m/s
Momentum of system after pack is thrown is 330 kg*m/s

What is the bicycle speed after the throw? Answer in kg*m/s

Homework Equations





The Attempt at a Solution



330 / 5 = 66 kg*m/s

or 330 / 61 = 5.41 kg*m/s
 
Last edited by a moderator:
Physics news on Phys.org
Momentum of system after pack is thrown is 330 kg*m/s = (Mass of tony + Cycle)*v + Mass of the pack*its velocity. Velocity of pack with respect to the ground is 5 + 1 = 6m/s.
 
Thanks i got the answer!
 

Similar threads

How to Calculate Speed of Head of Driver After Collision?
  • · Replies 10 ·
Replies
10
Views
3K
Frame of reference of bicycle rider
  • · Replies 2 ·
Replies
2
Views
1K
What Is the Initial Momentum of the System?
  • · Replies 3 ·
Replies
3
Views
4K
Applying a force in a wheel bicycle
  • · Replies 2 ·
Replies
2
Views
1K
What is the energy conservation principle in a two masses and pulley problem?
  • · Replies 33 ·
2
Replies
33
Views
4K
How to Calculate Amplitude Decrease in Damped Harmonic Motion After 10 Cycles?
  • · Replies 3 ·
Replies
3
Views
1K
Maximizing Cyclist Speed: Solving the Energy Question in a Race
  • · Replies 11 ·
Replies
11
Views
5K
Bicycle Forces in Circular Motion
  • · Replies 1 ·
Replies
1
Views
2K
What are the speeds of P and M while riding Ents and playing catch with rings?
  • · Replies 18 ·
Replies
18
Views
2K
Rotational Momentum: Calculating Angular Speed After Cockroach Stops
  • · Replies 2 ·
Replies
2
Views
2K