6.
(a)Given below is the velocity-time graph fortho-motion of the car. What does the nature of the
graph show ? Also find the acceleration of the car.
15.0 -
12.5-
10.0-
12
R
7.5
Speed (m/s)
A
Hc
5.0 -
2.54
ti
t.
O
5
5 10 15 20
25
30 35
Time (min)
(b)A racing car has a uniform acceleration of 4 ms. What distance will it cover in 10 s after
start?
(c) What is retardation? Give one example for retardation.
Answers
Explanation:
.
(a)Given below is the velocity-time graph fortho-motion of the car. What does the nature of the
graph show ? Also find the acceleration of the car.
15.0 -
12.5-
10.0-
12
R
7.5
Speed (m/s)
A
Hc
5.0 -
2.54
ti
t.
O
5
5 10 15 20
25
30 35
Time (min)
(b)A racing car has a uniform acceleration of 4 ms. What distance will it cover in 10 s after
start?
(c) What is retardation? Give one example for retardation.
Answer:
Given below is the velocity-time graph fortho-motion of the car. What does the nature of the
graph show ? Also find the acceleration of the car.
15.0 -
12.5-
10.0-
12
R
7.5
Speed (m/s)
A
Hc
5.0 -
2.54
ti
t.
O
5
5 10 15 20
25
30 35
Time (min)
(b)A racing car has a uniform acceleration of 4 ms. What distance will it cover in 10 s after
start?
(c) What is retardation? Give one example for retardation.