A particle of mass 5kg is pulled along a rough horizontal surface by a string which is inclined at 60° to the horizontal. if the
1 answer:
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Answer:
The answers can be found attached.
Answer:
So length of pendulum is 143.129 m
Explanation:
We have given period of simple pendulum is 2 sec
We have to find the length of simple pendulum
Let the length of pendulum is l
Acceleration due to gravity is
Time period is given by
So
Squaring both side
l =143.129 m
So length of pendulum is 143.129 m
Answer:
The airplane should release the parcel m before reaching the island
Explanation:
The height of the plane is , and its speed is v=150 m/s
When an object moves horizontally in free air (no friction), the equation for the y measured with respect to ground is
[1]
And the distance X is
x = V.t [2]
Being t the time elapsed since the release of the parcel
If we isolate t from the equation [1] and replace it in equation [2] we get
Using the given values:
x = m