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प्रश्न
Which of the quantity-velocity or acceleration-determines the direction of motion?
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उत्तर
Velocity determines the direction of motion.
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संबंधित प्रश्न
State whether speed is a scalar or a vector quantity. Give reason for your choice.
The graph given alongside shows how the speed of a car changes with time:
(i) What is the initial speed of the car ?
(ii) What is the maximum speed attained by the car ?
(iii) Which part of the graph shows zero acceleration ?
(iv) Which part of the graph shows varying retardation ?
(v) Find the distance travelled in first 8 hours.
A bus moving along a straight line at 20 m/s undergoes an acceleration of 4 m/s2. After 2 seconds, its speed will be:
For the motion with uniform velocity , how is the distance travelled related to the time ?
Draw the shape of the velocity-time graph for a body moving with (a) Uniform velocity and (b) Uniform acceleration.
From the displacement-time graph of a cyclist given below in the Figure, find The average velocity in the first 4 s.
A body projected vertically up with a velocity of 10 m/s reaches a height of 20 m. If it is projected with a velocity of 20 m/s, then the maximum height reached by the body is:
Define speed of a body.
How many variables are present in each equation of motion?
