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2 years ago

6

a professional baseball player can pitch a baseball with a velocity of 44.7m/s towards home plate. If a baseball weighs 1.4 N, h

ow much momentum does it have when it hits the catcher units

2 answers:

topjm [15]2 years ago

8 0

Answer:

p = 6.25 kg-m/s

Explanation:

It is given that,

Velocity of the baseball, v = 44.7 m/s

Weight of the baseball, W = 1.4 N

Firstly we need to find the mass of the baseball. It can be calculated as :

$m=\dfrac{W}{g}$

$m=\dfrac{1.4\ N}{9.8\ m/s^2}$

m = 0.14 kg

The momentum of an object is equal to the product of mass and velocity. It is given by :

$p=m\times v$

$p=0.14\ kg\times 44.7\ m/s$

p = 6.25 kg-m/s

So, the momentum it have when it hits the catcher is 6.25 kg-m/s. Hence, this is the required solution.

kumpel [21]2 years ago

3 0

1.4 N is a weight so calculating it's mass
1.4/9.8 = 0.1428 kg
momentum will be 0.1428*44.7 = 6.38 kgm/s

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A wooden disk of mass m and radius r has a string of negligible mass is wrapped around it. If the disk is allowed to fall and th

Tju [1.3M]

Answer:

$a = \frac{2}{3}g$

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As the disc is unrolling from the thread then at any moment of the time

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also by torque equation we can say

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$TR = \frac{1}{2}mR^2(\frac{a}{R})$

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Now we have

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Also from above equation the tension force in the string is

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Answer:

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The howler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 8.9 km. Assume the

exis [7]

Answer:

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dezoksy [38]

Answer and Explanation:

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S = 1.1(t) + 1052.3

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