| 1 |
To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined |
Parallel
Antiparallel
At angle 60<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
Perpendicular to each other
|
| 2 |
The time of flight of a projectile motion equal to |
half of the time to reach maximum height
twice the time to reach maximum height
one fourth of time to reach maximum height
time to reach maximum height
|
| 3 |
For maximum linear distance of travel, a projectile must be fired at an angle of |
0<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
45<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
90<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
60<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
|
| 4 |
The velocity of a projectile is maximum |
at the point of projection
just before striking the ground
at none of them
at both of them
|
| 5 |
The vertical and horizontal range will be equal id angle of projection is |
76<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
45<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
60<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
120<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
|
| 6 |
The projectile attains maximum horizontal range when it is projected at an angle of |
30<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
45<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
60<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
75<span style="color: rgb(84, 84, 84); font-family: arial, sans-serif; font-size: small;">°</span>
|
| 7 |
The horizontal range of projectile, at a certain place, depends upon |
the mass of the projectile
velocity of projection
angle of projection
angle as well as velocity of projection
|
| 8 |
A particle of mass 0.5 g moving along x-axis is located of x1= 15 m at t1= 5s and x2= 33 m at t2= 13s its average velocity is |
6 m s<sup>-1</sup>
2.45 m s<sup>-1</sup>
2.25 m s<sup>-1</sup>
4.45 m s<sup>-1</sup>
|
| 9 |
The horizontal component of a projectile moving with initial velocity of 500 ms-1at an angle 60° to x-axis is |
500 ms<sup>-1</sup>
1000 ms<sup>-1</sup>
250 ms<sup>-1</sup>
Zero
|
| 10 |
The vertical component of velocity of a projectile during its motion is minimum |
at the time of projection
at the highest point
just before hitting the plane of projection
all of them
|
| 11 |
During the projectile motion, the horizontal component of velocity |
changes with time
remains constant
becomes zero
decreases with time
|
| 12 |
The projectile motion is composed of |
horizontal motion only
vertical motion only
horizontal and vertical motion
none of them
|
| 13 |
The path (or trajectory) described by a projectile is |
a parabola
a hyperbola
a circle
a straight line
|
| 14 |
The path described by a projectile is called its |
orbit
trajectory
range
distance
|
| 15 |
Which of the following is not a projectile |
a bullet fired from a gun
a space ship
a football in air
an artillery shell
|
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