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प्रश्न
Assertion: The Speedometer of a car or a motor-cycle measures its average speed.
Reason: Average velocity is equal to total displacement divided by total time taken.
विकल्प
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If assertion is false but reason is true.
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उत्तर
If assertion is false but reason is true.
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संबंधित प्रश्न
A body goes from P to Q with a uniform speed of u and immediately returns back to P at a uniform speed of v. what is the average velocity for the whole journey?
A stone is dropped from a certain height. Is its motion uniform or non-uniform?
A body moves along a straight track. Half of the distance it covers with a velocity of 40 ms-1 and the remaining half with a velocity of 60 ms-1. What is the average velocity for the whole journey?
Distinguish between speed and velocity.
What is the slope of the body when it moves with uniform velocity?
Assertion: An object can have constant speed but the variable velocity
Reason: Speed is a scalar but velocity is a vector.
Give the formula for each.
- elation between initial, final velocity, acceleration, and displacement in a uniformly accelerated straight-line motion.
- Relation between initial, final velocity, acceleration & time in a uniformly accelerated straight-line motion.
- Relation between initial velocity, acceleration, displacement, and time.
Define velocity.
Define velocity.
Distinguish between speed and velocity.
