Answer:
75.7238461542 kg
20.4664723031 m
Explanation:
F = Force = 82 N
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration
Force is given by
The mass of the block is 75.7238461542 kg
Distance moved in the next 4.2 seconds
The distance moved is 20.4664723031 m
Answer:
d = 68.18 m
Explanation:
Given that,
Initial velocity, u = 15 m/s
Finally it comes to stop, v = 0
Acceleration, a = -1.65 m/s²
Time, t = 2.5 s
We need to find the distance covered by the hayride before coming to a stop. Let d is the distance covered. Using third equation of motion to find it :
So, the hayride will cover a distance of 68.18 m.
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Answer:
The work done by the electric force is =
The potential of the starting point with respect to the end point is
The magnitude of E
Explanation:
Looking at this we can see that the work done by the electric force is equal to the kinetic energy this is because on the electric field is uniform and that the work done resulted in motion.
Mathematically
Where is the potential difference
q is the charge whose value i given as =
W is the workdone whose value is obtained as =
Substituting
Mathematically
Where E is the electric field strength
d is the distanced moved and it is given as 6.00 cm = 0.06 m
Making E the subject of the formula