The answer is actually a,b, and d
Brainliest?
BAH! Took me forever to think of it.
The Scientific method.
Brainliest please. :D
Answer:
(a) 50 kJ
(b) 14.14 m/s
(c) 0 N
(d) 0 J
Solution:
As per the question:
Mass of car, m = 500 kg
Force, F = 1000 N
Distance traveled, s = 50 m
Now,
(a) The total work done can be given as:
(b) To calculate the speed of the car:
Using work-energy relation, we can say that the work done equals the change in the kinetic energy of the car:
where
v' = final velocity
v = initial velocity = 0
Now,
(c) To calculate the net force on the car when the velocity is constant:
The net force is given as the product of mass and acceleration:
F = ma
<em>Acceleration can be defined as the rate with which the velocity of the car changes and the since the velocity is constant, the car will not have any acceleration, a = 0</em>
Thus the net force is also zero.
(d) The total work done when the car moves with constant velocity:
Answer:
The correct answer to the following question will be "12.0 N/C".
Explanation:
As we know,
Charged from the inside of the sphere throughout consideration of the electrical field or inside sphere.
⇒
Now,
⇒
On putting the values in the above formula, we get
⇒
⇒
Electric field within the sphere at that same distance of 20.0 cm from either the core.
⇒
On putting the values, we get
⇒
⇒