Tuesday, April 12, 2016
IX SAI P08 T001 MOTION
1. [1]The
velocity of an object can be changed by
(a) changing
the speed (b) changing the
direction of motion
(c) Changing
both the speed and direction of motion
(d) All (a),
(b) and (c) are true.
2. [1]A body
displaces through 30 m eastward and 20 m
northward. What is total displacement
3. [2]Tabulate diffrenece between Distance and
Displacement (At least three.)
4. [2]A car
traveling at 20 km/h speeds up to 60 km/h
in 6 second. What is its acceleration?
5. [2]An
athlete completes one round of a circular track of diameter 200 m in 40 s.
What will be the distance covered and the displacement at the end of 1 minutes
40 s?
6. [2]Abdul,
while driving to school, computes the average speed for his trip to be 20 km h–1.
On his return trip along the same route, there is less traffic and the average
speed is 40 km h–1. What is the average speed for Abdul’s trip?
7. [2]Joseph
jogs from one end A to the other end B of a straight 300 m road in 1 minutes 30
seconds and then turns around and jogs 150 m back to point C in another 1
minute. What are Joseph’s average speeds and velocities in jogging
(a)
From A to B and (b) from A to C?
8. [3]A body covers half the distance with a velocity of 15 m/s and the
remaining half with a velocity of 30 m/s/ Find the average velocity.
9. A body
covers one third of the distance with a velocity of 60m/s and the second
one-third a velocity of 30 m/s/ and the last one-third with a velocity of 40
m/s. Find the average velocity.
10. A bus
decreases its speed from 80 km h–1 to 60 km h–1
in 5 s. Find the acceleration of the bus.
11. A train
starting from a railway station and moving with uniform acceleration attains a
speed 40 km h–1 in 10
minutes. Find its acceleration.
12. [2]Define
(a)Velocity (b) Acceleration(c)Uniform and Non-Uniform
Acceleration
Thursday, April 7, 2016
WELCOME SESSION 2016-17
I welcome U to new session. All the best for the forthcoming session.
As U r aware 9th is the basic foundation class which lays the foundation for the coming four year of studies from 9th to 12th.U need to be meticulous, planned and serious while pursing ur studies.
Welcome yr suggestion.
Thanks
Devendra
As U r aware 9th is the basic foundation class which lays the foundation for the coming four year of studies from 9th to 12th.U need to be meticulous, planned and serious while pursing ur studies.
- In this blog i will strive to update u regarding yr studies.
- I will post u the relevant assignments
- Old papers.
- Notes on important topics
- Important links to some educational vedios.
Welcome yr suggestion.
Thanks
Devendra
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