- #1
Mr530
- 7
- 0
A projectile is fired straight upward at 135 m/s. How fast is it moving at the instant it reaches the top of its trajectory?
My answer: 0 m/s
Suppose instead it were fired upward at 35°. What would be its speed at the top of its trajectory?
m/s
I do not know how to approach this. Does it want vertical speed or horizontal speed? How do I calculate this?
and...
Consider an airplane that normally has an air speed of 95 km/h in a 105 km/h crosswind blowing from west to east. Calculate its ground velocity when its nose is pointed north in the crosswind.
Magnitude
______ km/h
Direction
______° (counterclockwise from east)
I have been staring at this problem for the last hour, I do not know how to set this up. Any help would be much appreciated!
My answer: 0 m/s
Suppose instead it were fired upward at 35°. What would be its speed at the top of its trajectory?
m/s
I do not know how to approach this. Does it want vertical speed or horizontal speed? How do I calculate this?
and...
Consider an airplane that normally has an air speed of 95 km/h in a 105 km/h crosswind blowing from west to east. Calculate its ground velocity when its nose is pointed north in the crosswind.
Magnitude
______ km/h
Direction
______° (counterclockwise from east)
I have been staring at this problem for the last hour, I do not know how to set this up. Any help would be much appreciated!