Advertisements
Advertisements
प्रश्न
A car of mass 1000 kg is moving with a velocity of 10 m s−1. If the velocity-time graph for this car is a horizontal line parallel to the time axis, then the velocity of car at the end of 25 s will be :
विकल्प
25 m s−1
40 m s−1
10 m s−1
250 m s−1
Advertisements
उत्तर
It is given that the velocity time curve is parallel to x axis hence velocity is constant with time and acceleration is 0. So, the answer is
(c) 10 m s−1
APPEARS IN
संबंधित प्रश्न
Derive the following equation of motion by the graphical method : v2 = u2 + 2as, where the symbols have their usual meanings.
What can you say about the motion of a body if:
its displacement-time graph is a straight line ?
A body is moving uniformly in a straight line with a velocity of 5 m/s. Find graphically the distance covered by it in 5 seconds.
What does the slope of a displacement-time graph represent?
Draw displacement – time graph for the following situation:
When a body is stationary.
Represent the location of an object described as at 15 m, 45o west of north, on a graph paper.
Draw distance-time graph to show:
Increasing velocity
Figure shows the distance-time graph of three students A, B and C. On the basis of the graph, answer the following :
Will the three ever meet at any point on the road?
(i) In speed time graph uniform motion is given by a straight line parallel to x axis so figure (a) denotes the uniform motion.
(ii) In speed time graph motion with increasing speed is shown by straight line with positive slope so figure (c) denotes the motion with speed increasing.
(iii) In speed time graph motion with decreasing speed is shown by straight line with negative slope so figure (b) denotes the motion with speed decreasing.
(iv) In speed time graph motion with oscillating speed is shown by zigzag line so figure {d) denotes the motion with speed oscillating.
State whether true or false. If false, correct the statement.
The velocity – time graph of a particle falling freely under gravity would be a straight line parallel to the x axis.
