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- 1. Multiple Choice
Which of the following is a vector quantity?
5 m/s
5m/s, east
5s
none of these
- 2. Multiple Choice
Which statement describes a vector?
It has magnitude but no direction
It has both direction and magnitude
It has direction but no magnitude
It has constant magnitude but no direction
- 3. Multiple Choice
A sailboat is sailing 15 m/s due west is a
vector quantity
scalar quantity
both
none of these
- 4. Multiple Choice
A vector A 5m, east is added to vector B at 3m, west. What is the resultant?
8 m, east
2m, east
2m, west
8 m, west
- 5. Multiple Choice
A boy is pulling a cart tied with a rope at speed of 4m/s. The rope is making 30 degree with the horizontal. What is the horizontal component?
3.46 m/s
2 m/s
2.31m/s
none of these
- 6. Multiple Choice
One will use Pythagorean theorem to find the magnitude of
two horizontal vectors added
two vertical vectors added
one vertical and one horizontal vectors added
direction of the vectors
- 7. Multiple Choice
A tangent function is used to find the direction of the perpendicular vectors added. Tangent is
- 8. Multiple Choice
A projectile is launched at an angle of above horizontal. Ignoring air resistance, what are the projectiles horizontal and vertical accelerations when it reaches its maximum height?
Both horizontal and vertical accelerations are zero
The horizontal acceleration is zero and the vertical acceleration is .
The horizontal acceleration is and the vertical acceleration is zero
Both the horizontal and vertical acceleration are
- 9. Multiple Choice
A ball is kicked at an angle of from the horizontal. What happened to the velocity as the ball as it rises to the maximum height?
increases in positive direction
decreases in positive direction
increases in negative direction
decreases in negative direction
- 10. Multiple Choice
In a projectile, the horizontal component is independent to
the range
the time
the vertical component
all of these
- 11. Multiple Choice
A football player kicks a ball with initial velocity of 25m/s at an angle above the horizontal. What is the vertical component of the ball?
33 m/s
20 m/s
15 m/s
10 m/s
- 12. Multiple Choice
A cannonball has initial velocity of 5m/s and have a vertical component of 3m/s. What is the angle at which the cannon ball is launched?
none of these
- 13. Multiple Choice
As the projectile reaches its maximum height, what happened to its final velocity?
constant
zero
9.8 m/s
-9.8 m/s
- 14. Multiple Choice
The magnitude of the first vector is 3 m to the east is connected to 4 m to the north. What is the magnitude of its resultant?
1 m
5 m
25 m
7 m
- 15. Multiple Choice
A projectile is launched at 5 m/s with an angle from the horizontal. What is the maximum range obtained by the ball?
2.55 m
4.33 m
2.89 m
none of these
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