Multiple Choice
A stone is thrown at an angle of 30 above the horizontal from the top edge of a cliff with an initial speed of 12 m/s.A stop watch measures the stone's trajectory time from top of cliff to bottom to be 5.6 s.What is the height of the cliff? (g = 9.8 m/s2 and air resistance is negligible)
A) 58 m
B) 154 m
C) 120 m
D) 197 m
Correct Answer:

Verified
Correct Answer:
Verified
Q12: A plane is moving due north,directly towards
Q28: An object,initially moving in the negative x-direction,is
Q31: A baseball is thrown by the center
Q35: A baseball is thrown by the center
Q48: A runner circles a track of radius
Q50: An object moves at a constant velocity
Q51: A ball is launched from ground
Q58: A runner circles a track of radius
Q59: John throws a baseball from the
Q84: When we add a displacement vector to