Answer: 13.6 N
Explanation:
The equation of motion for the rabbit is:
(1)
Where:
is the distance traveled by the rabbit
is the rabbit's initial velocity, assuming it started from rest
is the time
is the acceleration
Isolating :
(2)
(3)
(4)
On the other hand, the force 
is given by:
(5)
Where 
is the mass of the rabbit
Substituting (4) in (5):
(6)
Finally:
Answer:
3m/s
Explanation:
K.E= (1/2)mv^2
216j= (1/2)48kg • v^2
216J=24kg•v^2
v^2 = (216J)/(24kg)
v^2= 9m^2/s^2
/sqrt{v^2} = /sqrt{9m^2/s^2}
V =3m/s
Answer:
<h3>The 28 loops wound on the square armature</h3>
Explanation:
Peak output voltage 
V
Area of square armature 
Magnetic field 
T
Angular frequency 
According to the law of electromagnetic induction,
Where 
number of loops of wire.
≅ 28
Thus, 28 loops of wire should be wound on the square armature.
Answer:
1.4s
Explanation:
Given parameters:
Mass of ball = 2kg
Force = 8N
Time = 0.35s
Unknown:
Change in velocity = ?
Solution:
To solve this problem, we use the expression obtained from Newton's second law of motion which is shown below:
Ft = m(v - u)
So;
Ft = m Δv
F is the force
t is the time
m is the mass
Δv is the change in velocity
8 x 0.35 = 2 x Δv
Δv = 1.4s
The answer is c. it requires no works
