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The area under the velocity-time graph is equal to the:
A. speed of the body
B. distance travelled by the body
C. magnitude of the displacement of the body
D. none of these
We know that, Displacement = Velocity × Time So, the area under the curve of Velocity – Time graph of a body will give the magnitude of displacement of the body. Hence option C is correct.
We know that,
Displacement = Velocity × Time
So, the area under the curve of Velocity – Time graph of a body will give the magnitude of displacement of the body.
Hence option C is correct.
See lessWhat is the Difference between Speed and Velocity?
VelocitySpeedVelocity can be defined as the rate at which an object changes position in a certain direction.The rate at which an object covers a certain distance is known as speed.Vector quantityScalar quantityVelocity can be zero, negative, or positive.Speed can never be negative or zero.The velociRead more
A trolley, while going down an inclined plane, has an acceleration of 2 cm/s2 . What will be its velocity 3 s after the start?
Here we have, Initial velocity, u = 0 m/s Acceleration (a) = 2 cm/s2 = 0.02 m/s2 Time (t) = 3 s Final velocity, v = ? We know that, v = u + at Therefore, v = 0 + 0.02 × 3 m/s ⇒ v = 0.06 m/s Therefore the final velocity of trolley will be 0.06 m/s after start.
Here we have,
Initial velocity, u = 0 m/s
Acceleration (a) = 2 cm/s2 = 0.02 m/s2
Time (t) = 3 s
Final velocity, v = ?
We know that, v = u + at
Therefore, v = 0 + 0.02 × 3 m/s
⇒ v = 0.06 m/s
Therefore the final velocity of trolley will be 0.06 m/s after start.
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