Answer:
The final kinetic energy is
Explanation:
From the question we are told that
The electric field is
The charge on the object is
The mass of the object is
The distance moved by the object is
The workdone on the object by the fields is mathematically represented as
Now this workdone is equivalent to the final kinetic energy so
substituting values
Answer:
A. 69.9m
Explanation:
Given parameters:
Initial velocity = 10.5m/s
Final velocity = 21.7m/s
Time = 4.34s
Unknown:
Distance traveled = ?
Solution:
Let us first find the acceleration of the car;
Acceleration =
v is final velocity
u is initial velocity
t is the time
Acceleration = = 2.58m/s²
Distance traveled;
V² = U² + 2aS
21.7² = 10.5² + 2 x 2.58 x S
360.64 = 2 x 2.58 x S
S = 69.9m