A projectile is fired from ground level at an angle of 69 above the horizontal w
ID: 1342212 • Letter: A
Question
A projectile is fired from ground level at an angle of 69 above the horizontal with an initial speed of 26 m/s .
Part A
What is the magnitude of its instantaneous velocity at the moment it is fired?
Part B
What is the direction (relative to horizontal) of its instantaneous velocity at the moment it is fired?
Part C
What is the magnitude of its instantaneous velocity the moment it reaches its maximum height?
Part D
What is the direction (relative to horizontal) of its instantaneous velocity the moment it reaches its maximum height?
Part E
What is the magnitude of its instantaneous velocity the moment before it hits the ground?
Part F
What is the direction (relative to horizontal) of its instantaneous velocity the moment before it hits the ground?
Explanation / Answer
Part A
v = 26 m/s
part B
69 degrees above the horizontal
Part C
v*cos(69) = 9.31 m/s
Part D) 0 degrees with horizontal.it means that the direction is along the horizontal
Part E)
V = 26 m/s
Part F) 69 degrees below the horizontal
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