Q7. The velocity
a-
of body is shown below
State the kind of motion
represented by OA Pand AB
bo Find the Velocity of the
body after 10s and after
c. What is the negative acceleration
of the body
d- Find the distance travelled
between 10th and 30th second
20
velocity 10
(ms
0
10 20 30 40
time (s).
Answers
Answered by
7
Answer:
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Explanation:
OA represents uniform acceleration since the slope of OA in the velocity-time graph is having a uniform positive slope. AB represents the uniform velocity of 20ms
−1
. Since the slope of AB is zero. hence, acceleration is zero.
(2) After 10 s, the velocity is 20ms
−1
up to 30 s and after 30 s, the velocity is uniformly restarted to zero after 40 s.
(3) Retardation is uniform and it is equal to the slope of BC, i.e.
Slope of BC =
DC
BD
=
40−30
20
=2ms
−2
And acceleration =−2ms
−2
(4) Distance covered by the body between the 10th and 30th second
=20×20=400metres
Answered by
2
Answer:
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aap batao ?
Explanation:
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