Given :
A wooden block is let go from a height of 5.80 m.
To Find :
The velocity of the block just before it hits the ground.
Solution :
We know, by equation of motion :
Here, a = g = 9.8 m/s²( Acceleration due to gravity )
Putting all given values in above equation, we get :
Hence, this is the required solution.
(a) 25 A
The induced emf in the circuit is given by
where
is the variation of magnetic flux through the bracelet
is the time interval
The variation of magnetic flux is
where
is the area enclosed by the bracelet
is the change of magnetic field strength
So we find
And so the induced emf is
Since the resistance of the bracelet is
the induced current is
(b) 12.5 W
The power delivered to the bracelet is given by
where we have
I = 25 A is the current
V = 0.50 V is the emf induced in the bracelet
Substituting numbers, we find
Normal force, weight, Kinetic friction, and air resistance are a few I think of the top of my head.
I hope this helps
Use the formula below for this question:
re-arrange to solve for a:
now simply plug in your variables and there's your answer :). If you ever get stuck, you can look up the kinematic equations!
Answer:
m/s^2, acceleration
Explanation:
velocity in SI units is meter / second
dividing by time(second) gives meter / second^2 which is acceleration.