Motion In A Straight Line CBSE Questions & Answers

Motion In A Straight Line

This is Physics Class 11 Motion in a Straight Line CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

A truck is coming towards you from a distance of 1000m on a straight road at time t=0. At time t=10 seconds it is at a distance of 900 m. The average velocity in m/sec is

A
14
B
12
C
17
D
10.0
Correct

A truck is coming towards you from a distance of 1000m on a straight road, at time t=0. It reaches you in 100sec. The average speed in m/s is

A
12
B
14
C
17
D
10.0
Correct

A truck is coming towards you from a distance of 1000m on a straight road, at time t=0. The driver stops for a second near a poster. He reaches you in 100 sec. The average speed in m/s is

A
17
B
12
C
10.0
Correct
D
14

A truck is coming towards you from a distance of 1000m on a straight road. At time t=0 it starts from rest. At time t=10 seconds its velocity is 20m/s. What is the average acceleration in m/ \({\rm{se}}{{\rm{c}}^{\rm{2}}}\)

A
5.2
B
2.5
C
1.5
D
2.0
Correct

With reference to the figure which shows a particle moving along a straight line , y axis represents the position and x axis represents time, if \({{\rm{x}}_{\rm{1}}}\) = 18m, The average velocity at if \({{\rm{x}}_{\rm{1}}}\) in m/s is

A
18.0
Correct
B
20
C
1.8
D
180

With reference to the figure which shows a particle moving along a straight line , y axis represents the position and x axis represents time, if \({{\text{x}}^{\text{2}}}\)= 280m, The average velocity at \({{\rm{x}}_{\rm{2}}}\) in m/s is

A
280
B
80
C
140
D
70.0
Correct

A stone thrown from the top of a building is given an initial velocity of 20.0 m/s straight upward. Determine the time in seconds at which the stone reaches its maximum height. g =9.8 m / \({\rm{se}}{{\rm{c}}^{\rm{2}}}\)

A
2.04
Correct
B
1.67
C
2.7
D
2.8

With reference to the figure below which shows a particle moving along a straight line , y axis represents the position and x axis represents time, if \({{\rm{x}}_{\rm{2}}}\) = 270m, The instantaneous velocity at \({{\rm{x}}_{\rm{2}}}\) in m/s is

A
145
B
130
C
123.0
Correct
D
138

With reference to the figure below which shows a particle moving along a straight line , y axis represents the position and x axis represents time, if \({{\rm{x}}_{\rm{2}}}\) = 290.4m and the velocity at t = 3.5 sec is 130 m/s The instantaneous acceleration at \({{\rm{x}}_{\rm{2}}}\) in m/ \({\rm{se}}{{\rm{c}}^{\rm{2}}}\) is

A
8
B
2
C
4.0
Correct
D
6

A jet lands on an aircraft carrier at 60 m/s. What is its acceleration if it stops in 2.0 s?

A
-20 \({\rm{m}}{{\rm{s}}^{ - {\rm{2}}}}\)
B
30 \({\rm{m}}{{\rm{s}}^{ - {\rm{2}}}}\)
C
-10 \({\rm{m}}{{\rm{s}}^{ - {\rm{2}}}}\)
D
-30 \({\rm{m}}{{\rm{s}}^{ - {\rm{2}}}}\)
Correct

A jet lands on an aircraft carrier at 30 m/s. What is its acceleration if it stops in 2.0 s?

A
-10 \({\rm{m}}{{\rm{s}}^{ - {\rm{2}}}}\)
B
-15 \({\rm{m}}{{\rm{s}}^{ - {\rm{2}}}}\)
Correct
C
-20 \({\rm{m}}{{\rm{s}}^{ - {\rm{2}}}}\)
D
20 \({\rm{m}}{{\rm{s}}^{ - {\rm{2}}}}\)

A jet lands on an aircraft carrier at 60 m/s. It stops in 2.0 s? What is the displacement of the plane in m while it is stopping?

A
45
B
50
C
35
D
60.0
Correct

A jet lands on an aircraft carrier at 30 m/s. It stops in 2.0 s? What is the displacement of the plane in m while it is stopping?

A
45
B
30.0
Correct
C
40
D
35

A truck accelerates at 1 m / \({\rm{se}}{{\rm{c}}^{\rm{2}}}\)from rest. What is its velocity in m/s at a time of 2 sec?

A
1
B
3
C
2.0
Correct
D
4

A truck has a velocity of 2 m /s at time t=0. It accelerates at 2 m / \({{\rm{s}}^{\rm{2}}}\) on seeing police .What is its velocity in m/s at a time of 2 sec

A
4
B
3
C
7
D
6.0
Correct