Relay Race! - Kinematics (A day)

What is kinematics?

• The study of the health benefits of motion.

• A mathematical description of motion.

• Kinetic + Mathematics

• A type of robotics where electrical connections are studied.

This term is the rate of change of velocity over a set period of time. (Use all lowercase letters).

(a)  

Which equation(s) are used in Motion with Constant Acceleration?

• 
• 
• 
• 

Which equation describes the relationship between velocity, position, and acceleration but does not depend on time?

• 
• 
• 
• 

A Saturn V rocket is launched straight up with a constant acceleration of 11 m/s². After 2 minutes 22 seconds, how fast is the rocket moving? (Round your answer to the nearest whole number).

• 1562 m/s

• 24 m/s

• 24 m/s²

• 13 m/s²

In this type of motion, gravity is the only force acting on the object.

(a)  

A fully loaded Boeing 747 (airplane) with all engines at full thrust accelerates at 2.2 m/s². Its minimum takeoff speed is 79 m/s. How much time will the plane take to reach its takeoff speed?
(Round your answer to the nearest whole number).

• 36 seconds

• 79 seconds

• 1 minute 11 seconds

• 106 seconds

A car is traveling at a speed of 28 m/s on wet pavement. The driver sees and obstacle ahead and decides to stop. From this instant, it takes her 0.62 s to begin applying the brake. Once the brakes are applied, the car experiences an acceleration of -5.2 m/s². How far does the car travel from the instant the driver notices the obstacle until stopping?

(Round your answer to the nearest whole number)

• 93 meters

• -58 meters

• 75 meters

• 75 miles

A heavy rock is dropped from rest at the top of a cliff and falls 92 m before hitting the ground. What is the MAGNITUDE of its velocity when it hits the ground? Hint: a_y = -g = -9.8 m/s²
(Round your answer to the nearest whole number)

• 42 m/s

• 42 m/s²

• 1803 m/s

• -9.8 m/s²

In this type of motion, velocity is constant and acceleration is equal to zero.

• uniform motion

• free fall

• motion with constant acceleration

• projectile motion