Answer:
15.66 rad/s
Explanation:
The vertical motion and horizontal motion are independent of each other.
t = √ ( 2 s/ g) where t = time for the ball to reach the ground and s is the height of the cliff = 18.0 m
t = √ ( 36 / 9.81 ) = 1.916 secs
horizontal distance travel = ut where u is the horizontal velocity of the stone = 30 × r (radius)
tangential velocity V = angular velocity ( ω) × radius
distance traveled = ω × r × t = 30 × r
radius cancelled on both side
ω = 30 / 1.9156 = 15.66 rad/s
Anything above because the first part of the answers have less mass then the second part
Answer:
C
<span>
An
axe is a mechanical device with two inclined planes, thick at one end and
tapers to a thin edge and when it is used to chop wood, the axe blade acts as a
wedge and changes the direction of the input force. When the axe blade
penetrates the wood, a portion of the downward force of the blade is changed to
sideways forces, which are perpendicular to each external of the blade and the sideways forces
cause the wood to split in contrasting directions.</span>
Healthy to get better at your daily activities but harmful to your body if you overdo it
