A car has a certain displacement between 0 seconds and 2 seconds. If we defined its velocity as v(t)=6t-5, then the displacement in meters is:
1. 1 m
2. 2 m
3. 3 m
4. 4 m
The relation between time t and distance x is , where a and b are constants, the acceleration is
(1)
(2)
(3)
(4)
Given velocity v(t) = . Assume s(t) is measured in meters and t is measured in seconds. If s(0) = 0, the position s(4) at t = 4s is:
1. | 2. | ||
3. | 4. |
The current through a wire depends on time as .
The charge that crosses through the wire in seconds is:
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4. None of there
The area of a blot of ink, , is growing such that after seconds, . Then the rate of increase in the area at will be:
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4.
A particle starts rotating from rest and its angular displacement is given by . Then, the angular velocity at the end of will be:
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4.
, where C is a constant, can be expressed as:
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4.
If the force on an object as a function of displacement is , what is work as a function of displacement : Assume and force is in the direction of the object's motion.
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4.
The velocity of a rocket, in metres per second, seconds after it was launched is modelled by . What is the total distance travelled by the rocket during the first four seconds of its launch?
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4.