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3 years ago

Please urgent science question explaining needed

Physics

2 answers:

Orlov [11]3 years ago

8 0

I think you forgot the question

sweet-ann [11.9K]3 years ago

3 0

Answer:

what is the question? there isn't one

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A bicycle is heading West. It goes 5000m in 500s what's its velocity

dybincka [34]

There are several information's of immense importance already given in the question. Based on the given information's the answer to the question can easily be determined.
Distance covered by the bicycle = 5000 meter
Time taken by the bicycle to reach the distance = 500 second.
Velocity of the bicycle = Distance / Time taken
= 5000/500 meter/second
= 50 meter/second
So the velocity of the bicycle is 50 meter per second. I hope the procedure is clear enough for you to understand. In future you can always use this procedure for solving similar problems.

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3 years ago

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olchik [2.2K]

Answer:

Explanation:

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3 years ago

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lesantik [10]

True if you actually did it. false if you didn't

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3 years ago

What do all agents of erosion have in common

Vikentia [17]

All agents of erosion all move and separate rock and dirt?

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3 years ago

a 450 kg piano is being unloaded from a truck by rolling it down a ramp at 22 degree inclined . there is negligible friction and

mafiozo [28]

To solve this problem we will apply the linear motion kinematic equations, and force related equations in Newton's second Law.

Our values are given by:

$m = 450 kg$

$x = 11.5m$

$F = 1420 N$

$\theta = 22\°$

Through equilibrium we know that the Force coming from the vertical weight component minus the Force exerted on the body must be equal to the total Force (Mass and acceleration). So,

$\sum F = ma \\F_w sin(22) - F = ma\\(mg)sin(22) - F = ma\\(450)(9.8)sin(22) - 1420 = 450a\\a = 0.515 m/s^2$

Applying the kinematic equations of motion in which the velocity is described by the change in acceleration and position we have

$v_f^2 = v_i^2 + 2ax$

$v_f^2 = 0 + 2(0.515)(11.5)$

$v_f = 3.44 m/s$

Therefore the Speed at the bottom is 3.44m/s

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4 years ago