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klemol [59]
2 years ago
13

A baseball with a mass of 151 g is thrown horizontally with a speed of 39.5 m/s (88 mi/h) at a bat. The ball is in contact with

the bat for 1.10 ms and then travels straight back at a speed of 45.1 m/s (101 mi/h). Determine the average force exerted on the ball by the bat.
Physics
1 answer:
Oduvanchick [21]2 years ago
7 0

Answer:

the average force exerted on the ball by the bat is 11,613.27 N

Explanation:

Given;

mass of the baseball, m = 151 g = 0.151 kg

initial velocity of the baseball, u = 39.5 m/s

final velocity of the baseball, v = 45.1 m/s

time of action, t = 1.10 ms = 1.10 x 10⁻³ s

The average force exerted on the ball by the bat is calculate as;

F = ma = \frac{m(v-u)}{t} \\\\F = \frac{0.151(45.1-(-39.5))}{1.10\times 10^{-3}} \\\\F = \frac{0.151(45.1\ +\ 39.5)}{1.10\times 10^{-3}} \\\\F = 11,613.27 \ N

Therefore, the average force exerted on the ball by the bat is 11,613.27 N

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Answer:

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Explanation:

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2 years ago
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lyudmila [28]

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2 years ago
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A box is pulled 6 meters across the ground at a constant velocity by a horizontally applied force of 50 newtons. At the same tim
Vikentia [17]

Answer:

(a) Friction force = 50 N

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Explanation:

We have given that the box is pulled by 6 meter so d = 6 m

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We have have given that velocity is constant so acceleration will be zero

So to applied force will be utilized in balancing the friction force

So friction force F_{friction}=50N

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Work done by applied force W=F\times d=50\times 6=300j

So net work done = 300-300 = 0 j

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Answer:

Frequency

Explanation:

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Or E=\dfrac{hc}{\lambda}

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From the above equation, it is clear that the energy of photon is directly proportional to its frequency.

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3 years ago
what is a point of view of an object used to determine another obejects motion i nedd help asap plsss​
Igoryamba
A believe that’s called a reference point.
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