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3 years ago

HELP!!! I have no idea how to calculate this.

Physics

1 answer:

stiks02 [169]3 years ago

4 0

$\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}$

Actually Welcome to the Concept of the kinematics of a body.

Since, we know that Velocity = Distance / time

hence, V = 20/5 = 4 m/s

hence the velocity of the RC car is 4 m/s westwards direction.

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2 years ago

A simple wheel and axle is used to lift a bucket of water out of a well. the radii of the wheel and axle are 20cm and 4cm, respe

Veronika [31]

Answer: i think it is A

Explanation: hope it helped

5 0

2 years ago

Read 2 more answers

An object is at rest when it undergoes a constant acceleration of 13 m/s ^ 2 for 5.0 seconds. How far will it have traveled duri

Orlov [11]

Answer:

162.5 m is the distance traveled by an object.

Explanation:

Given that,

An object's constant acceleration (a) is $13m/s^2$ .

The time (t) it traveled is 5 seconds.

The object is at rest that is "initial velocity" (u) is 0 m/s.

To find the distance traveled use the below formula,

$s=ut+\frac{1}{2}at^2$

Where, "s" is distance traveled, "u" is initial velocity, "a" is acceleration and "t" is time taken.

Substitute the given values in the above formula,

$s=0\times5+\frac{1}{2}\times13\times 5^2$

$s=0+\frac{1}{2}\times13\times 25$

$s=0+\frac{1}{2}\times325$

s = 162.5 m

Therefore, distance traveled is 162.5 m.

3 0

3 years ago

Which is a unit of length in the International System of units?

REY [17]

Answer:

Source: National Bureau of Standards Wall Chart. 1 inch, = 25 millimetres. 1 foot, = 0.3 metre. 1 yard, = 0.9 metre. 1 mile ...

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7 0

3 years ago

the graph represent the relationship between the work done by a 40.8kg students running up a flight of 10 steps and time . each

diamong [38]

Since the graph is a straight line so the slope will remain same at all points

So here slope is given as

$slope = \frac{dy}{dx} = \frac{1000 - 0}{4 - 0}$

$slope = 250$

Now here we can say that slope will represent the rate of change in the physical quantity on Y axis with respect to the quantity on X axis

So here we will have

$Slope = \frac{dW}{dt}$

so it is rate of work done

So slope of this graph will same as power of the object

6 0

3 years ago