Question

Physics
a).Plan to go to a place by a vehicle. Take readings of odometer and speedometer after
every 5minutes till you reach your destination. Record these observations in tabular form:
plot graphs between distance-time and speed time. State whether this motion is uniform or
non-uniform.
b). Answer the following questions:
1. What is the acceleration of a body moving with uniform velocity?
2. What does the slope of a distance-time graph gives?
3. Can displacement be zero even when distance is not zero? Give Example.
4. How can you get speed of an object from its distance - time graph?
5. How can you get distance of an object from its speed - time graph?
6. Can a body have zero velocity and still acceleration? Give example.
7. Is it possible in straight line motion a particle having zero speed and a non-zero
velocity? Explain
8. On a 60 km straight road, a bus travels the first 30 km with a uniform speed of 30 kmh-1
How
fast must the bus travel the next 30 km so as to have average speed of 40 kmh-1for the
entire trip?
9. A driver takes 0.20 seconds to apply the brakes. If he is driving car at a speed of 54
kmh-1 and
the brakes cause a deceleration of 6.0 ms 2. Find the distance travelled by the car after he
sees the
need to put the brakes
10. A bullet initially moving with a velocity of 20m/s strikes a target and comes to rest after
penetrating a distance of 0.01m in the target. Calculate the retardation produced by the
target.
11. A body moving in a straight line at 72kmph undergoes an acceleration of 4m/s2. Find its
speed after 2 sec.?​

Answer 1

Answer:

Physics

a).Plan to go to a place by a vehicle. Take readings of odometer and speedometer after

every 5minutes till you reach your destination. Record these observations in tabular form:

plot graphs between distance-time and speed time. State whether this motion is uniform or

non-uniform.

b). Answer the following questions:

1. What is the acceleration of a body moving with uniform velocity?

2. What does the slope of a distance-time graph gives?

3. Can displacement be zero even when distance is not zero? Give Example.

4. How can you get speed of an object from its distance - time graph?

5. How can you get distance of an object from its speed - time graph?

6. Can a body have zero velocity and still acceleration? Give example.

7. Is it possible in straight line motion a particle having zero speed and a non-zero

velocity? Explain

8. On a 60 km straight road, a bus travels the first 30 km with a uniform speed of 30 kmh-1

How

fast must the bus travel the next 30 km so as to have average speed of 40 kmh-1for the

entire trip?

9. A driver takes 0.20 seconds to apply the brakes. If he is driving car at a speed of 54

kmh-1 and

the brakes cause a deceleration of 6.0 ms 2. Find the distance travelled by the car after he

sees the

need to put the brakes

10. A bullet initially moving with a velocity of 20m/s strikes a target and comes to rest after

penetrating a distance of 0.01m in the target. Calculate the retardation produced by the

target.

11. A body moving in a straight line at 72kmph undergoes an acceleration of 4m/s2. Find its

speed after 2 sec.?

Explanation:

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