Answer:
The time is 0.90 sec.
Explanation:
Given that,
Height = 4.00 m
We need to calculate the time
Using equation of motion
For free fall, u = 0
Where, s = distance
g = acceleration due to gravity
t = time
Put the value into the formula
Hence, The time is 0.90 sec.
Answer:
4.03\times10^{7}N[/tex], 135°
Explanation:
charge, q = 7 mC = 0.007 C
charge, - q = - 7 mC = - 0.007 C
d = 0.1 m
Let the force on charge placed at C due to charge placed at D is FD.
The direction of FD is along C to D.
Let the force on charge placed at C due to charge placed at B is FB.
The direction of FB is along C to B.
Let the force on charge placed at C due to charge placed at A is FA.
The direction of FA is along A to C.
The net force along +X axis
The net force along +Y axis
The resultant force is given by
The angle from x axis is Ф
tan Ф = - 1
Ф = -45°
Angle from + X axis is 180° - 45° = 135°
