The answer is D) Velocity
I would believe that this is false.
Given : Time taken to reach the maximum height t=3 s a=−g=−10m/s
2
The initial velocity of the ball can be calculated by,
Using v=u+at
∴ 0=u−10×3 ⟹u=30 m/s
Using S=ut+
2
1
at
2
∴ S=30×3+
2
1
×(−10)×3
2
=45m
Electric field lines of positive charges are always radially outwards
So here all field lines must have tendency to move out radially as well as two field lines never intersects with each other
So here field lines also do not intersects with each other
So overall the figure C is perfectly representing the field lines of two positive charges as these lines are not intersecting and also originating from two positive charges.
So answer must be
<u><em>FIGURE C</em></u>
Answer:
The radius is (0.04m) meters
Explanation:
F = mv^2/r
m is the mass of the helicopter = m kg
v is the speed of the helicopter = 20 m/s
F is force supplied by the jet = 10,000 N
10,000 = m×20^2/r
r = 400m/10,000 = 0.04m
The radius is (0.04m) meters