Question

5.
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?
Can displacement be zero even when distance is not zero? Give Example.
How can you get speed of an oblect from it distance time grach?
How can you got distance of an object from it spoed te graph?
Cm a body have zero velocity and still acceleration? Give exemple:
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 rool, a bus travels the first 30 km with a uniform speed of 30 kmh. How
fast must the bus travel the next 30 km so as to have average speed of 40 kmh for the entire
trip?
A driver takes 0.20 seconds to apply the brakes. If he is driving car at a speed of 54 kmh 'and
the brakes cause a deceleration of 6.0 ms? Find the distance travelled by the car after he sees the
need to put the brakes,
10. A ball thrown vertically upwards with a speed of 19,6 ms from the top of a tower returns to the
earth in 6 seconds. Find the height of the tower (g-9.8ms)
11. A bullet initially moving with a velocity of 201Vs strikes a target and comes to rest after
penetrating a distance of 0.01m in the target Calculate the retardation produced by the target
12. A body moving in a straight line at 72kmph undergoes an acceleration of 4m/s? Find its speed
after 2 seconds
moving at rate of 72h and applies brakes which prov
How much time does the car takes to stop
How much distance does the car cover before coming to rest?
What would be the stopping distance needed if speed of the car​

Answer 1

Answer:

ans 1- uniform acceleration

ans 2- displacement

ans 3- yes displacement can be 0 even if the distance is not 0 if the initial and final position are same.

Explanation:

I cannot give all the answers at once so please post the questions 5 at a time.