Which of the following best indicates the components of a vectorthat measures 30 m at 135°?

a)<21, 21> m

b)<-21, 21> m

c)<21, -21> m

d)<-21, -21> m

A student runs off of a diving platform with a speed of 2.5 m/sand hits the water 0.8 seconds later. What is the height of theplatform?

	5.1 m
	0.9 m
	3.1 m
	6.2 m

Vector A has components A =<-2, 5> m/s and vector B has components B =<6, -2> m/s. What is the magnitude of vectorC if C = A +B?

	25 m/s
	5 m/s
	11 m/s
	7 m/s

A student fires a bullet horizontally from a gun. Whichstatement is most accurate?

	The bullet will start to fall as soon as it leaves the gun.
	The bullet will move horizontally for some time before it startsto fall.
	The bullet will travel horizontally without falling.
	The question does not provide enough information.

Which of the following is an example of a vectormeasurement?

	Speed
	Distance
	Mass
	Acceleration
	More than one of the above

A person driving through a field has velocity components thatare 30 m/s west and 20 m/s south. What is the approximate directionof the overall velocity?

	48°
	214°
	34°
	-34°

A student kicks a ball that is initially at rest on the ground.The ball leaves the student's foot with some velocity v at an angleθ. When the ball is at its maximum height, which statement is mostaccurate?

	At the maximum height, the velocity of the ball is zero.
	At the maximum height, the acceleration of the ball is zero.
	Both of the above are true.
	None of the above are true.