O-Hawk's funky Basketball shoes
What is speed?
The rate at which an objects covers a distance
What units make up Joules?
Newtons and meters
A force of 10 N is applied to move an object 5 m horizontally. What is the work done?
50 J
A vehicle decelerates at a rate of -2 m/s squared. if the mass of the vehicle is 22 lbs what is the force causing the deceleration?
-20 N
If, then, because.
What is the formula for finding power?
Work divided by time
What is Net Force?
The sum of forces acting upon an object.
A mule pulls a cart of milk 10 meters with a force of 50 newtons. Calculate the work done by a mule.
500
A 20 N force causes an object to accelerate at the rate of 5 m/s squared. what is the mass of the object?
4 kg
What 2 units is power (Watts) Made up of?
Joules and seconds
What are three ways an object can accelerate?
Change in Velocity, direction, and speed.
What does Newton's second law state?
The force acting on an object is equal to its mass in Kg's x its acceleration.
A box is pushed 40 meters by a mover. The amount of work done was 2,240 joules. How much force was exerted on the box?
56 N of force
if Carter weighs 50 Kgs and pushes against a wall that weighs 1 ton for 3 years and it doesn't move how much work is done?
What is the formula for finding force and from which of Newton's laws does it come from?
F=ma, Newton's second law.
What is a frame of reference?
a set of stated values due to which measurements or judgments can be made.
What is a vector quantity?
Vector quantities have both magnitude and direction.
A truck pushes a mound of dirt 5 meters and exerts work of 75 Joules. How much power was used?
15 Watts
If a computer rests on a desk without a change in acceleration is there work being done?
No.
What is required for work to happen?
A change in acceleration
What is Inertia?
the natural tendency of objects in motion to stay in motion and objects at rest to stay at rest
What is the acceleration due to gravity?
9.8 m/s squared.
Carter is pulling a rope with a force of 12 N, if Owen is pulling in the other direction with a force of 30 N what is the net force?
18 N towards Owen
A watermelon weighing 10 newtons is lifted 2 meters. How much work is done?
20 J
What does the E in scientific notation stand for?
times 10