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Maru [420]
4 years ago
14

a 55 kg baseball player slides into third base with an initial speed of 4.6 m/s If the coefficient of kinetic friction between t

he player and the ground is 0.46, what is the player's acceleration?
Physics
1 answer:
Ronch [10]4 years ago
6 0
Hello there.

<span>0 + ½ m v(i)² - µ m g d = 0 + 0 </span>
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A 60 kg student in a rowboat on a still lake decides to dive off the back of the boat. The studen'ts horizontal aceleration is 2
TiliK225 [7]
As per the third law of Newton, the force exerted by the boat over the student is equal in magnitude to the force that the student exerted on the boat.

So, calculate the force on the student using the second law of Newton, Force = mass * acceleration.

Force on the student = 60 kg * 2.0 m/s^2 = 120 N.

=> horizontal force exerted by the student on the boat = 120 N

Answer: option d. 120 N. toward the back of the boat.

Of course it is toward the back because that is where the student jumped from..
4 0
4 years ago
A current i travels counterclockwise through a closed copper wire loop which has the shape of a rectangle with sides 'a' and 'b'
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<span>A current i travels counterclockwise through a closed copper wire loop which has the shape of a rectangle with sides</span>
4 0
3 years ago
How does the see temperature affect hurricane formation?
insens350 [35]
The higher the sea surface temperature, the faster the warm, moist air rises into the atmosphere. This updraft creates a donut shaped vortex that is rising in the middle and going downward on the sides. The more moisture in the air (humidity), the stronger the vortex will become as the moisture rises through convective currents, cools, and falls through convective currents. This eventually causes rotation of the storm mass and you get a tropical cyclone. So, the high sea surface temperatures and humidity are actually the engine that forms a hurricane and causes it to increase in strength.

High level horizontal winds can prevent a hurricane from forming. These are called shear winds and they literally blow the top of the cyclone off, preventing it from forming properly.
8 0
3 years ago
Why would a baseball traveling at 20 m/s have more kinetic energy than a baseball traveling at 5 m/s?
bagirrra123 [75]

Answer:

because formula of kinetic energy is K=1/2mv^2 that means more the velocity then more kinetic energy

5 0
3 years ago
Let's examine over the next few questions an NFL kick as described in the 3rd Law video. The announcer claimed that the ball is
hichkok12 [17]

Answer:

8451.62109367671 Newtons

Explanation:

1\ kg=1\times 9.8066500286389=9.8066500286389\ N

1 \lb=2.2046226218488\ kg

It is known that

1\ lbs=\dfrac{9.8066500286389}{2.2046226218488}=4.4482216282508\ N

So,

1900\ lbs=1900\times 4.4482216282508\\\Rightarrow 1900\ lbs=8451.6210936765\ N

The force in Newtons is 8451.6210936765 Newtons

4 0
4 years ago
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