Homework Statement
I have to use energy conservation to solve this. So i cannot solve with kinematics
"On a windless day, the engine of a 250 g toy rocket exerts 30N of thrust straight upward until it burns out at a height of 165 m"
How fast is the rocket moving at 165m?
Homework...
calculate the initial acceleration of a 13 140 kg V-2 rocket bomb fired vertically, if the thrust of its engines is 2.63 x 10 to the power of 5 N. then calculate the rockets acceleration near "burn-out", when its mass is only 4170 kg.
So i did. Part 1.
Fnet = ma
a = fnet/m
20.01m/s^2=...
Just a quick question. When you are given two vectors, let's say 5m (E32N) and 6m (S23E)
and we are to find the total displacement. Do you draw the first vector and then attach the second vector to do the head of the first vector? or have both vectors start a the origin.
[STRIKE]A boy is running a a constant velocity of 3.0 m/s [E] and passes his father who is standing still. The father immediately starts to chase his son with a constant acceleration of 1.5m/s at the instant his that his son reachers him
How long does it take the father to catch his son...
It's an easy question but I am not getting the correct answer as the book states.
Superwoman is flying at 108km/h. She decelerates at a constant rate to 36km/h
How far in meters does super woman travel in the first 8 seconds?
They told me to draw a velocity time graph which I did. I found the...
I am sort of confuse about this step functions. In the picture below, the top is the distance time graph and the bottom is velocity time graph. The arrow pointing is what is confusing me. Its not suppose to be a step up (answers in my book) but i calculated the slopes
First curve line = 30...
I am so confuse! It's regarding translating motion graphs.
When translating a position time graph to a velocity time graph, if a curve line is followed by a straight diagonal line (both going up) do I use a step function?
Cause in this video...