Multiple Choice
A stone is thrown at an angle of 45° above the horizontal from the top edge of a cliff with an initial speed of 15 m/s.A stop watch measures the stone's trajectory time from top of cliff to bottom to be 5.4 s.How far out from the cliff's edge does the stone travel horizontally? (g = 9.8 m/s2 and air resistance is negligible)
A) 57 m
B) 81 m
C) 202 m
D) 86 m
E) 200 m
Correct Answer:
Verified
Correct Answer:
Verified
Q17: A hiker walks 200 m west and
Q26: A plane is moving due north,directly towards
Q27: A stone is thrown with an initial
Q28: A taxicab moves five blocks due north,six
Q29: A rifle is aimed horizontally toward the
Q32: Vector 1 is 8 units long and
Q34: A stone is thrown with an initial
Q35: A ball is launched from ground level
Q84: When we add a displacement vector to
Q93: When we subtract a velocity vector from