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3 years ago

What are the cahnges that a force can bring out on a body ? Give examples

2 answers:

5 0

Hi Pupil Here is your answer ::

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1 The shape of the Body

Example : The shape of the ball lying on a floor can be changed by pressing it.

2 Direction of the Body

Example : The direction of motion of moving ball can be changed by hitting it with a bat.

3 The speed of the Body

Example : A ball at rest can be set in motion if force is applied only

4. Size of the Body

Example : The length of a spring tied and on one end can be increased by pulling it.

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Hope this helps .......

Serggg [28]3 years ago

5 0

See above and enjoy

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4 years ago

Chris threw a basketball a distance of 27.5 m to score and win his

salantis [7]

Answer:

v₀ = 16.55 m/s

Explanation:

This motion of the ball can be modeled as a projectile motion with following data:

R = Range of Projectile = 27.5 m

θ = Launch Angle = 50°

g = acceleration due to gravity = 9.81 m/s²

v₀ = Initial Speed of Ball = ?

Therefore, using formula for range of projectile, we have:

$R = \frac{v_{0}^2\ Sin2\theta}{g}\\\\v_{0}^2 = \frac{Rg}{Sin2\theta}\\\\v_{0}^2 = \frac{(27.5\ m)(9.81\ m/s^2)}{Sin100^o}\\\\v_{0} = \sqrt{273.93\ m^2/s^2}$

v₀ = 16.55 m/s

8 0

3 years ago

Answer plz also give reason

user100 [1]

See this suggested solution.

1. Let a force F' is the vector sum of the forces P and Q, then it is shown on the attached picture and marked with red color.

2. according to the condition the force F holds the object, then F should have the same length as the force F' and the opposite direction.

3. using the conditions described in 2. the answer is C.

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3 years ago