Answer:
Explanation:
As a ball dropped into a river, its initial velocity is zero and then it is moving under the acceleration due to gravity. That means the acceleration on the ball is in vertically downwards direction which is equal to the acceleration due to gravity that means - 9.8 m/s^2.
When a bullet is fired from a gun straight downwards direction, the acceleration on the bullet is again acceleration due to gravity and it is acting acting downwards. In this case the initial velocity os not zero but acceleration is - 9.8 m/s^2.
Answer:
B
Explanation:
hair can be a safety hazard
Answer:
a rope being pulled from both sides with equal force
Explanation:
:)
<span>Part B
What are the values of the intial velocity vector components v0,x and v0,y (both in m/s) as well as the acceleration vector components a0,x and a0,y (both in m/s2)? Here the subscript 0 means "at time t0."
15.0, 26.0, 0, -9.80
</span><span>Part C
What are the values of the velocity vector components v1,x and v1,y (both in m/s) as well as the acceleration vector components a1,x and a1,y (both in m/s2)? Here the subscript 1 means that these are all at time t1.
15, 26, 0, -9.81</span><span>
</span>
Answer:
Gravity
Explanation:
Lets take the mass of the pendulum = m
Angle from vertical axis = θ
From the diagram
The gravity force mg have two component ,First one mg cosθ and other one is mg sinθ.
The component of gravity force mg sinθ is responsible for the motion of the pendulum ,that is why gravity does work in the pendulum.
Therefore the answer is -
Gravity
