Advertisements
Advertisements
The figure shows the displacement - time graph for four bodies A, B C and D. In each case state what information do you get about the acceleration (zero, positive or negative).
Concept: undefined >> undefined
The velocity-time graph of a body in motion is a straight line inclined to the time axis. The correct statement is ___________
Concept: undefined >> undefined
Advertisements
For a uniformly retarded motion, the velocity-time graph is _____________
Concept: undefined >> undefined
Write three equations of uniformly accelerated motion relating the initial velocity (u), final velocity (v), time (t), acceleration (a) and displacement (S).
Concept: undefined >> undefined
Derive the following equations for uniformly accelerated motion:
(i) v = u + at
(ii) `"S = ut" + 1/2 "at"^2`
(iii) v2 = u2 + 2aS
where the symbols have their usual meanings.
Concept: undefined >> undefined
A body, initially at rest, starts moving with a constant acceleration 2 m s-2. Calculate: (i) the velocity acquired and (ii) the distance travelled in 5 s.
Concept: undefined >> undefined
What is geothermal energy? Explain in brief.
Concept: undefined >> undefined
Explain how geothermal energy is used in generating electricity.
Concept: undefined >> undefined
What do you understand by the term acceleration?
Concept: undefined >> undefined
When is the positive acceleration?
Concept: undefined >> undefined
When is the negative acceleration?
Concept: undefined >> undefined
Multiple choice Question. Select the correct option.
A body dropped from the top of a tower reaches the ground in 4s. Height of the tower is
Concept: undefined >> undefined
Multiple choice Question. Select the correct option.
The speed of a car reduces from 15 m/s to 5 m/s over a displacement of 10 m. The uniform acceleration of the car is :
Concept: undefined >> undefined
Multiple choice Question. Select the correct option.
At the maximum height, a body thrown vertically upwards has :
Concept: undefined >> undefined
How can you find the following?
Acceleration from velocity – time graph.
Concept: undefined >> undefined
How can you find the following?
Velocity from acceleration – time graph.
Concept: undefined >> undefined
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
Concept: undefined >> undefined
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
Concept: undefined >> undefined
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
Concept: undefined >> undefined
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
Concept: undefined >> undefined
