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3 years ago

11

What is the definition magnitude?

2 answers:

Marina86 [1]3 years ago

7 0

Answer:

The measurment or the streangth & amount of force is called manitude force

Explanation:

Two or more forces on the same object can be applied in the same direction and opposite

direction.

1. When two or more forces are applied over an object in the same direction:

When two or more forces are applied in the same direction, then the total or net force is the

addition of magnitude of both the forces.

Example: When two persons push the box in the same direction with the magnitude of forces

of each 2 N, then resultant force will be-

Net force:- 2N + 2N= 4N (In the direction of applied force)

2. When two forces are applied over an object in the opposite direction:

When two forces are applied over an object in the opposite directions, the total effective or

net force is the difference of magnitude of two forces.

Example:

(i) When two persons push the box in the opposite direction with the magnitude of forces of

each 2 N, then resultant force will be-

Net force:- 2N - 2N= 0N (Box will not move)

Page 2 of

(ii) If one person is applying a force of 6 unit in one direction and another person is applying

a force of 8 unit in opposite direction,

Then the resultant force: 8N - 6N= 2N (In the direction of higher magnitude force)

In this case, force will act in the direction of higher magnitude of force.

strojnjashka [21]3 years ago

4 0

Answer:

What is the definition magnitude?

Magnitude (mathematics), a measure of the size of a mathematical object.

xXxAnimexXx

Have a great day!

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where m is the mass of the ball, v its speed, k the spring constant and x the displacement of the spring with respect its rest position.

Since it is a harmonic motion, kinetic energy is continuously converted into elastic potential energy and vice-versa.

When the spring is at its maximum displacement, the elastic potential energy is maximum (because the displacement x is maximum) while the kinetic energy is zero (because the velocity of the ball is zero), so in this situation we have:
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Instead, when the spring crosses its rest position, the elastic potential energy is zero (because x=0) and therefore the kinetic energy is at maximum (and so, the ball is at its maximum speed):
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Since the total energy E is always conserved, the maximum elastic potential energy should be equal to the maximum kinetic energy, and so we can find the value of the maximum speed of the ball:
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3 years ago

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Substituting into the equation, we find

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$I=F\Delta t$

where

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$\Delta t=0.0046 s$ is the contact time

Solving the formula for F, we find

$F=\frac{I}{\Delta t}=\frac{12.8 kg m/s}{0.0046 s}=2783 N = 2.78 kN$

(c) The force exerted on the ball is much larger (1988 times more) than the weigth of the ball

The weight of the ball is given by

$W=mg$

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$\frac{F}{W}=\frac{2783 N}{1.4 N}=1988$

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I hope that this will help, good luck.

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