Question 3 (multiple choice worth 2 points)
if we know the force, the distance, and the time we can calculate
only power.
work and power.
only work.
neither work or power.

question 4 (multiple choice worth 2 points)
if you are given time and distance, you can determine power if you know
force.
watts.
energy.
joules.

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s. when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?