Question

from A to B alone the circular path with a uniform speed of 10 m/s Find
(a) distance covered by the scooterist.
(b) displacement of the scooterist. and
(c) time taken by the scooterist in reaching from A to B
15
(a) Differentiate between uniform linear and uniform circular motion.
(b) Wnte any four examples of uniform circular motion
(C) Is uniform circular motion accelerated motion?
16
(a) Differentiate between speed and velocity.
(b) When is a body said to have uniform velocity?
(C) How can we describe the position of an object?
Mustrate with suitable example
17
The graph given alongside shows how the speed of a car
changes with time.
(c) What is the initial speed of the car?
(D) What is the maximum speed attained by the car?
(II) Which part of the graph shows zero acceleration?
(iv) Which part of the graph shows varying retardation?
(v) Find the distance travelled in first 8 hours
-
10
Tune in to
18
Study the velocity-time graph and calculate
(a) The acceleration from A to B
(b) The acceleration from B to C
(C) The distance covered in the region ABE
(d) The average velocity from C to D
(e) The distance covered in the region BCFE
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FY
o
5
6
teme (sec)
19
The following table gives the data about motion of a car.
Time
11.00 11.30 12.00 12.30 1.00
(h)
Distance o 30 30 65 100
(km)
Plot the graph.
(0) Find the speed of the car between 12.00 hours and 12.30 hours.
(ii) What is the average speed of the car?
(iii) is the car's motion an example of uniform motion? Justity.
20
(a) Derive the equation of motion v = u +at, using graphical method.
(b) A train starting from rest attains a velocity of 72 km/h in 5 minutes. Assuming the acceleration
is uniform, find
(i) the acceleration. (ii) the distance travelled by the train for attaining this velocity.
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Answer 1

Answer:

only 16 has been answered.

Explanation:

See the pic everything will be cleared

Answer 2

Answer:

(a) uniform velocity

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when the body covers equal diaplacements in equal intervals of time , it is said to have uniform velocity

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(b) variable velocity

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when the body covers unequal diaplacements in equal intervals of time , it is said to have variable velocity

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Explanation: