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PIT_PIT [208]
3 years ago
10

An object travels with velocity v = 4.0 meters/second and it makes an angle of 60.0° with the positive direction of the y-axis. 

Calculate the possible values of vx.
-3.5 meters/second and +3.5 meters/second


-2.0 meters/second and +2.0 meters/second


-2.5 meters/second and +2.5 meters/second


-3.0 meters/second and +3.0 meters/second

Physics
2 answers:
Darya [45]3 years ago
7 0
Goooooooaaaaalllll , C 2.5 meters
igor_vitrenko [27]3 years ago
4 0

Answer:

The velocity 2 m/s will be positive along positive direction and it will be negative along negative direction.

B is correct.

Explanation:

Given that,

Velocity v = 4.0 m/s

Angle \theta = 60^{\circ}

An object travels with velocity v = 4.0 meters/second and it makes an angle of 60.0° with the positive direction of the y-axis.

According to figure,

The component of given velocity

v_{x}= v\ cos\theta

v_{y}= v\ sin\theta

The possible value of v_{x} will be

v_{x}= v\ cos\theta

v_{x}=4\times\ cos60^{\circ}

v_{x}=4\times\dfrac{1}{2}

v_{x}=2\ m/s

The possible value of v_{x} will be 2 m/s.

Hence, The velocity 2 m/s will be positive along positive direction and it will be negative along negative direction.

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hram777 [196]
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3 years ago
When a rocket is traveling toward a mountain at 100 m/s, the sound waves from this rocket's engine approach the mountain at spee
Charra [1.4K]

Answer:

The correct option is C

Explanation:

From the question we are told that

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  A clear example when  lightning strikes you will first see (that is because it travels at  the speed of light which is greater than the speed of sound) but it would take some time before you hear the sound of the   lightning

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2 years ago
A rat runs 2m right, turns around and runs 3m left. Then goes 2m right. What is its displacement?
geniusboy [140]

Answer:

Explanation:

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