Here, you need to use your "Protractor" as it is given in the question, but we can calculate the value with the help of our mathematical calculation too:
[ Protractor can be use only in real life, not here ]
Draw an imaginary line from initial position to final position.
Now, In that triangle, tan x = P/B
tan x = 1.4 / 2
tan x = 0.70
x = tan⁻¹ (0.70)
x = 35 [ tan 35 = 0.70 ]
In short, Your Answer would be 35 degrees
Hope this helps!
Answer:
The force downward acting o the rocket is F=m*g=0.0782kg*9.8m/s^2=0.76636 N
Explanation:
Answer:
Your answer would be B. fall
Explanation:
This is because sliding would be continuous it just said a fragment of rock fell vertically. Hope this helps
Answer:
Part a)
Part b)
Explanation:
Part a)
Angular speed of the pedal is changing from 60 rpm to 90 rpm in 10 s
so the angular acceleration is given as
so we will have
now the tangential acceleration of the pedal is given as
Part b)
Total angular displacement made by the sprocket in the interval of 10 s is given as
now length of the chain passing over it is given as
Hi there!
For a rigid body rotating about a fixed axis, its angular characteristics ⇒ angular acceleration and velocity are constant throughout.
However, its LINEAR velocities/accelerations differ because of the following relationships:
v = ωr
a = αr
Thus, a point closer to the axis of rotation has a smaller linear velocity or acceleration compared to a point along the edge.