Speed and Velocity
How many miles per hour does a car travel if it makes a 30 mile trip in 20 minutes?
90 mph
When multiple forces act on an object, forces in the same direction are __________
added together
Miss Patterson's wedding date
What is May 1?
If velocity is constant, then what is the acceleration?
0
the difference between speed and velocity
velocity has a direction
An ice cube with a mass of 1.3 kg slides down an incline with an acceleration of 6.3 m/sec^2. Ignoring friction, how much force is pulling the ice cube down the tray?
8.2 Newtons
Miss Patterson's new last name
Barshinger
A skier reaches the bottom of the slope with a velocity of 19 m/sec North. If the skier comes to a complete stop in 4 seconds, what is her acceleration?
4.75 m/sec^2 South
The speed of a rolling ball that traveled 6 meters in 48 seconds.
.13 m/sec
A man pushes a heavy cart to the north. If a man exerts a force of 245 Newtons on the cart to keep it moving at a constant velocity, what is the frictional force between the cart and the ground?
245 Newtons south
What is Miss Patterson's hot drink of choice?
tea
If an object is speeding up, its acceleration is in the _______________ direction as its velocity.
same
A car is chasing another car heading West. The car in pursuit is moving at a velocity of 3.8 m/sec and the car being pursued is moving at a velocity of 4.2 m/sec. What is the relative velocity?
.4 m/sec appart
A woman pushes a box with a mass of 42 kg. The static friction between the box and the ground is 25 Newtons, while the kinetic friction is 9 Newtons. How much force must she push the box to get it to accelerate at 1.4 m/sec^2 to the East?
Total force = 58.8 Newtons
Force she needs is 67.8 Newtons
What kind of pet does Miss Patterson have?
snail or dog
A rock was dropped off a bridge. It took 2.6 seconds for the rock to hit the ground. How many meters high is the bridge?
33.1 meters