Answer:
Distance, S = 440 meters.
Explanation:
Given the following data;
Initial velocity, u = 17m/s
Time, t = 20 seconds
Final velocity, v = 27m/s
To find the distance;
First of all, we would determine the acceleration of the truck.
Acceleration = (v-u)/t
Substituting the given values into the equation, we have;
Acceleration = (27 - 17)/20
Acceleration = 10/20
Acceleration = 0.5m/s²
Now, we would use the second equation of motion to find the distance traveled.
S = ut + ½at²
S = 17*20 + ½*0.5*20²
S = 340 + 0.25*400
S = 340 + 100
S = 440m
Answer:
Pluck velocity = 83.34 m/s
Explanation:
The initial angular speed of the rod before it was hit,
The angular speed of the rod and pluck rotating together,
The period of rotation, T = 0.736 s
Using the principle of conservation of angular momentum:
Answer:
Explanation:
F = Magnetic force = 0.018 N
B = Magnetic field = 0.03 T
L = Length of wire = 35 cm
= Angle between current and magnetic field =
Magnetic force is given by
The magnitude of the current is .
The girls distance aquired should be North by 344 degrees
Answer :
Velocity will be
Explanation:
We have given glass surface has a diameter of 1.5 mm
And charge q = 1.60 nC
Radius of electrons orbit r = height of electron above surface + radius of sphere =
Force on electron is given by , here q is charge on sphere and e is charge on electron
This force work as centripetal force
So
v =