Dynamic Test!

Taufiq drives a car at a constant velocity of 5 meters/second south for 2 seconds. What is the magnitude of the acceleration during the 2 seconds?

• 5 m/s2

• 10 m/s2

• 2.5 m/s2

• 0 m/s2

Nasa fires a rocket upward with an initial velocity of 35 m/s. Find the rocket's maximum altitude.

• 1.8 m

• 65 m

• 63 m

• It will leave the earth.

Which equation correctly represents Newton’s Second Law?

• W=mg

• K=K1+K2

• F=ma

• V=IR

Aqil throws a ball horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How long until the ball reaches the ground?

• 0.22 s

• 0.67 s

• 0.47 s

• 0.45 s

Can an object have zero velocity but non-zero acceleration?

• No

• Yes, only in space

• Yes, at turning points

• Only when speed is increasing

Fadhliana tosses a rock upward into the sky. While it is rising, what is the direction of the net force acting on it?

• Upward

• Zero

• Downward

• First up, then down