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3 years ago

What is the difference between velocity and speed??

2 answers:

tatiyna3 years ago

5 0

Velocity is a vector quantity i.e. it has both magnitude and direction
Speed is a scalar quantity i.e. it has only magnitude

ch4aika [34]3 years ago

4 0

Answer:

velocity is a vector quantity while speed is a scalar quantity

Explanation:

Velocity is a vector quantity. This means that it is describe or characterized by booth speed and magnitude.

speed is a scalar quantity. This means that it has only magnitude but no direction.

for example, A car is driving at a speed of 200km/hr

This statement only describes the speed of the car and the magnitude, it is a scalar quantity

but a car if the statement says ; a car is driving with a velocity of 200km/hr northwards, The direction is specified therefore making it a vector quantity

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3 years ago

A LASIK vision-correction system uses a laser that emits 10-ns-long pulses of light, each with 3.0 mJ of energy. The laser beam

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3 years ago

According to Newton's third law, if you push on a wall, the wall ?

Lady bird [3.3K]

The wall will push back, in exactly the opposite direction, and with
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3 years ago

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A truck is moving around a circular curve at a uniform velocity of 13 m/s. If the centripetal force on the truck is 3,300 N and

Paladinen [302]

Answer: Option B.

Since here the truck is moving on a circular track, it will experience centripetal force.

F(centripetal) = m × acc
or
$r = \frac{m v^{2}}{F}$

where r is the radius of the track.
m is the mass of truck
v is the speed of the truck.
Given: v = <span>13 m/s
m = </span><span>1,600 kg
</span>F = 3300 Newton

To find = radius of track=?
$r = \frac{m v^{2} }{F}$
$r = \frac{1600*13*13}{3300}$
r = 81.94 m
Therefore, radius of track is 81.94 m

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3 years ago

Read 2 more answers