A lighthouse is located on a small island 5 km away from the nearest point p on a straight shoreline and its light makes two rev
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Answer:
Explanation:
Given
charge of first body
charge of second body
Particle 1 is at origin and particle 2 is at
third Particle which charge +q must be placed left of because it will repel the q charge while
will attract it
suppose it is placed at a distance of x m
Give u = start velocity
v = end velocity
v = u + at
50 = 400 + a*30
30a = -350
a = -116.67 m/
**Why the accecleration is negative number**
Because displacement, velocity, and acceleration are VECTOR QUANTITIES.
Vector Quantity must have direction.