Wondering if you have enough rope to rappel to the ground, you drop a rock off the top, and hear the sound of it hitting the bot
2 answers:
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Answer:
Approximately (assuming that external forces on the cannon are negligible.)
Explanation:
If an object of mass is moving at a velocity of
, the momentum
of that object would be
.
Momentum of the t-shirt:
.
If there is no external force (gravity, friction, etc.) on this cannon, the total momentum of this system should be conserved. In other words, if denote the momentum of this cannon:
.
.
Rewrite to obtain
. Since the mass of this cannon is
, the velocity of this cannon would be:
.
Answer:Given mass = 4.1kg
Radius = 0.0117m
Velocity V = 8.4m/s
Coefficient of friction = 0.25
Explanation: Below is an attached solution to the problem stated above.
1. The angular acceleration is equal to 524rad/s^2
2. The linear acceleration is equal to 2.45m/s^2
3.the time it takes the ball to begin rolling = 0.98s
4. The distance the ball slides before it begins to roll = 7.05m
