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Lorico [155]
3 years ago
7

If displacement is negative,is velocity negative too?

Physics
2 answers:
Lubov Fominskaja [6]3 years ago
7 0

Answer:

velocity too will be negative

Explanation:

<u><em>If displacement is negative,is velocity negative too?</em></u>

<u><em /></u>

Velocity is the rate of the displacement of an object with time

velocity =  displacement / time

Since there is no negative timing in all cases, so in every case where the displacement is negative , then displacement will velocity will also be negative

For example,  If the displacement of an object is -30m  and the time 6 seconds

Then velocity = displacement / time

                       = -30/6

                        = -5 m/s

evablogger [386]3 years ago
3 0

Answer:

An object which moves in the negative direction has a negative velocity. If the object is speeding up then its acceleration vector is directed in the same direction as its motion (in this case, a negative acceleration).

Explanation:

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a wave is described by where x is in meters, y is in centimeters and t is in seconds. The angular frequency is
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A wave is described by y(x,t) = 0.1 sin(3x + 10t), where x is in meters, y is in centimetres and t is in seconds. The angular wave  frequency is

Answer:

The  value is w =  10 \ rad /s

Explanation:

From the question we are told that  

    The equation describing the wave is y(x,t) = 0.1 sin(3x + 10t)

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         y(x,t) =  Asin(kx + wt )

Where  w  is the  angular frequency

Now comparing this equation  with that given we see that

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3 years ago
If the coefficient of static friction is 0.357, and the same ladder makes a 58.0° angle with respect to the horizontal, how far
zavuch27 [327]

Answer: d= 0.57* l

Explanation:

We need to check that before ladder slips the length of ladder the painter can climb.

So we need to satisfy the equilibrium conditions.

So for ∑Fx=0, ∑Fy=0 and ∑M=0

We have,

At the base of ladder, two components N₁ acting vertical and f₁ acting horizontal

At the top of ladder, N₂ acting horizontal

And Between somewhere we have the weight of painter acting downward equal to= mg

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and also mg*d*cosФ= N₂*l*sin∅

So,

d=\frac{N2}{mg}*l * tan∅

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So f₁= 0.357 * 69.1 * 9.8

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3 0
3 years ago
Read 2 more answers
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