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Sophie [7]
3 years ago
9

Consider two cases m which the same ball is thrown against a wall with the same initial velocity. In case A, the ball sticks to

the wall and does not bounce. In case B, the ball bounces back with the same speed that it came in with.
Required:
a. In which of these two cases is the change in momentum the largest?
b. Assuming that the time during which the momentum change takes place is approximately the same for these two cases, in which case is the larger average force involved?
c. Is momentum conserved in this collision? Explain.
Physics
1 answer:
AlexFokin [52]3 years ago
6 0

Answer: bounce causes bigger momentum change and larger average force. Momentum is conserved.

Explanation:

Momentum is the produce of a mass (here constant) and velocity.

As velocity is a vector, the change in velocity is twice as large for an elastic rebound bounce as it is for an in-elastic stickiness.

As an impulse, which is a force acting over time, creates a change in momentum, a greater change in momentum will require a greater force if the time is held constant.

FΔt = mΔv

Momentum is always conserved. Though one could probably not measure it, the wall-earth system responded by recoil to the exact same force the ball experienced.

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Explanation:

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4 0
3 years ago
¿Qué tipo de nutrientes proporcionan energía a nuestro organismo?
kow [346]

Answer:

The correct answer is: macronutrients.

Explanation:

Nutrients are chemical substances found in food that, when consumed, allow the development, maintenance and functioning of our body.

Every time you eat a food, your body assimilates, transforms and takes advantage of its nutrients in order to live.

No single food can provide us with all the nutrients that the body needs. Only a healthy, varied and balanced diet will do it.

Types of nutrients :

Nutrients can be essential (the body cannot synthesize them on its own and we must acquire them through food) or non-essential (our body produces them from other components). According to their proportion they are divided into :

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7 0
3 years ago
At what point in a projectile’s trajectory does it experience a minimum velocity?
ad-work [718]
Minimum velocity occurs at the top of the trajectory, where
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8 0
3 years ago
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So, if the board will be raised to a higher angle, it will increase the angle of incline and will overcome the static friction and block will be able slide.

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5 0
3 years ago
What is the ultimate source of energy for all living things
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