Stupendous Speed
What is the formula for speed? INCLUDE UNITS
s = d/t
Units: m/s
What is the formula for acceleration? INCLUDE UNITS
(Vf-Vi)/t
M/S^2
What formula does m/s belong to?
Speed
s = d/t
What is the definition of output?
The force that the machine exerts
What is the average speed of a cow that walks east 60 meters in 90 seconds?
.7m/s
What do we call it when a vehicle is slowing down?
Negative acceleration
What formula does m/s^2 belong to?
Acceleration
The input force of a pulley system is 250N to lift a 3000N engine out of a car. What is the Mechanical Advantage of the pulley system?
12N
A porcupine moved toward a pond at a speed of 5 m/s. It took him 8 seconds. What was the distance he traveled?
40 meters
Final Velocity = 50 m/s
Initial Velocity = 60 m/s
Time = 5 seconds
What is the acceleration of this object?
-2 m/s^2
What formula does N belong to?
Force
If you have to apply 40 N of force on a crowbar to lift a rock that weights 400 N, what is the mechanical advantage of the crowbar?
10N
What is the speed of an object moving east for 6 seconds at 105.3 m/s?
105.3 m/s
Calculate the acceleration of Josh riding his bicycle in a straight line that speeds up from 0 m/s to 10 m/s in 5 seconds.
2 m/s^2
What formula does % belong to?
Efficiency
Calculate the energy efficiency of a light bulb that gives of 40J of light from 200J of electrical energy.
20%