Answer:
velocity = displacement/time
= 4200m/ 2400s
= 1.75 m/s
Explanation:
40 minutes × 60 = 2400 seconds
<span>In
a monosynaptic reflexes, it is like me speaking to you over a
telephone. I am the only talker and you are the only listener. The
phone line only has to connect to 2 people. If I am the one talking, I
would be the sensory neuron, and if you are listening you would be the
motor neuron. I can tell you what to do really fast because it is only 1
person I have to give instructions to. An example of this is the
patellar reflex. The doc hits the patella and your leg kicks. This is
becuse the sensory neuron gets hit and he quickly tells the motor neuron
to kick. It happens really, really fast. Another example is touching a
hot stove, what happens? Before you can even think to yourself that
the stove is hot, your hand will pull away. Monosynaptic reflexes are
made for very quick responses to stimuli that will not need to be
stopped or thought about in order to react.
</span>
Newton's Third Law is every action has an equal and opposite reaction.
B. 200 N Backwards is the correct answer
The ball should put 200 N of force towards the golfer.
The ball is exerting 200 N of force towards the club as well, but the opposite reaction is that it flies away.
For more details: For each reaction there must be a opposite reaction(Which is the ball going 200 N backwards) and an equal reaction(The ball putting 200 N of force towards the golfer and the golfer)
The distance traveled by the box over the first 4 s is 16 m.
To solve the problem above, First, we apply newton's Fundamental equation of force.
<h3 /><h3>Newton's fundamental equation of force:</h3>
F = ma...................... Equation 1
Where
- F = Force
- m = mass of the box
- a = acceleration
make "a " the subject of the equation
a = F/m...................... Equation 2
From the question,
Given:
Substitute these values into equation 2
a = 10/5
a = 2 m/s²
Finally, we use the equation of motion to calculate the distance it will travel over the given period of time.
<h3><u>Equation of motion</u></h3>
s = ut+at²/2........................... Equation 3
Where:
- s = total distance traveled
- t = time
- u = initial velocity
Given:
- t = 4 s
- u = 0 m/s (at rest)
Substitute these values into equation 3
- s = 0(4)+(2×4²)/2
- s = 0+32/2
- s = 16 m
Hence, the distance traveled by the box over the first 4 s is 16 m
Learn more about Newton's fundamental equation here: brainly.com/question/13370981
Answer:
(a) 104 N
(b) 52 N
Explanation:
Given Data
Angle of inclination of the ramp: 20°
F makes an angle of 30° with the ramp
The component of F parallel to the ramp is Fx = 90 N.
The component of F perpendicular to the ramp is Fy.
(a)
Let the +x-direction be up the incline and the +y-direction by the perpendicular to the surface of the incline.
Resolve F into its x-component from Pythagorean theorem:
Fx=Fcos30°
Solve for F:
F= Fx/cos30°
Substitute for Fx from given data:
Fx=90 N/cos30°
=104 N
(b) Resolve r into its y-component from Pythagorean theorem:
Fy = Fsin 30°
Substitute for F from part (a):
Fy = (104 N) (sin 30°)
= 52 N
