The heart rate will likely decrease. As the cardiac muscle, or heart, gets stronger, it takes less effort to pump more blood. As a result, the heart will probably beat less, decreasing the heart rate. This is why athletes often have lower heart rates than the average person.
First, you find the velocity at each component. The general equation is:
a = (v2 - v1)/t
a,x = (v2,x - v1,x)/t
-0.105 = (v2,x - 8.57)/6.67
v2,x = 7.87 m/s
a,y = (v2,y - v1,y)/t
0.101 = (v2,y - -2.61)/6.67
v2,y = -1.94 m/s
To find the final speed, find the resultant velocity by taking the hypotenuse.
v^2 = (v2,x)^2 + (v2,y)^2
v^2 = (7.87)^2 + (-1.94)^2
v = 8.1 m/s
Answer:
The speed of the resistive force is 42.426 m/s
Explanation:
Given;
mass of skydiver, m = 75 kg
terminal velocity, ![V_T = 60 \ m/s](https://tex.z-dn.net/?f=V_T%20%3D%2060%20%5C%20m%2Fs)
The resistive force on the skydiver is known as drag force.
Drag force is directly proportional to square of terminal velocity.
![F_D = kV_T^2](https://tex.z-dn.net/?f=F_D%20%3D%20kV_T%5E2)
Where;
k is a constant
![k = \frac{F_D_1}{V_{T1}^2} = \frac{F_D_2}{V_{T2}^2}](https://tex.z-dn.net/?f=k%20%3D%20%5Cfrac%7BF_D_1%7D%7BV_%7BT1%7D%5E2%7D%20%3D%20%5Cfrac%7BF_D_2%7D%7BV_%7BT2%7D%5E2%7D)
When the new drag force is half of the original drag force;
![F_D_2 = \frac{F_D_1}{2} \\\\\frac{F_D_1}{V_{T1}^2} = \frac{F_D_2}{V_{T2}^2} \\\\\frac{F_D_1}{V_{T1}^2} = \frac{F_D_1}{2V_{T2}^2} \\\\\frac{1}{V_{T1}^2} = \frac{1}{2V_{T2}^2}\\\\2V_{T2}^2 = V_{T1}^2\\\\V_{T2}^2= \frac{V_{T1}^2}{2} \\\\V_{T2}= \sqrt{\frac{V_{T1}^2}{2} } \\\\V_{T2}= \frac{V_{T1}}{\sqrt{2} } \\\\V_{T2}= 0.7071(V_{T1})\\\\V_{T2}= 0.7071(60 \ m/s)\\\\V_{T2}= 42.426 \ m/s](https://tex.z-dn.net/?f=F_D_2%20%3D%20%5Cfrac%7BF_D_1%7D%7B2%7D%20%5C%5C%5C%5C%5Cfrac%7BF_D_1%7D%7BV_%7BT1%7D%5E2%7D%20%3D%20%5Cfrac%7BF_D_2%7D%7BV_%7BT2%7D%5E2%7D%20%5C%5C%5C%5C%5Cfrac%7BF_D_1%7D%7BV_%7BT1%7D%5E2%7D%20%3D%20%5Cfrac%7BF_D_1%7D%7B2V_%7BT2%7D%5E2%7D%20%5C%5C%5C%5C%5Cfrac%7B1%7D%7BV_%7BT1%7D%5E2%7D%20%3D%20%5Cfrac%7B1%7D%7B2V_%7BT2%7D%5E2%7D%5C%5C%5C%5C2V_%7BT2%7D%5E2%20%3D%20V_%7BT1%7D%5E2%5C%5C%5C%5CV_%7BT2%7D%5E2%3D%20%5Cfrac%7BV_%7BT1%7D%5E2%7D%7B2%7D%20%5C%5C%5C%5CV_%7BT2%7D%3D%20%5Csqrt%7B%5Cfrac%7BV_%7BT1%7D%5E2%7D%7B2%7D%20%7D%20%5C%5C%5C%5CV_%7BT2%7D%3D%20%20%5Cfrac%7BV_%7BT1%7D%7D%7B%5Csqrt%7B2%7D%20%7D%20%5C%5C%5C%5CV_%7BT2%7D%3D%20%200.7071%28V_%7BT1%7D%29%5C%5C%5C%5CV_%7BT2%7D%3D%200.7071%2860%20%5C%20m%2Fs%29%5C%5C%5C%5CV_%7BT2%7D%3D%2042.426%20%5C%20m%2Fs)
Therefore, the speed of the resistive force is 42.426 m/s
Answer:
Flutter
Explanation:
Flutter is a type of arrhythmia that causes very fast and regular ryth of the atria of about 250 beats per minute.
Arrhythmia can be defined as any sort of irregularity heart rate or rhythm is also called as dysrhythmia.
Arrhythmias can be categorized as heart block, bradycardia, tachycardia, fibrillation, flutter, sick sinus syndrome, and is diagnosed by Electrocardiography.
In Flutter, the heart chambers do get sufficient time to get filled with blood completely prior to next contraction.