Answer:
5600N
Explanation:
Given parameters:
Mass of car = 700kg
Initial velocity = 10m/s
Final velocity = 30m/s
Displacement = 50m
Unknown:
Net force acting on the car = ?
Solution:
To find the force acting on a body, it is pertinent we know the mass and acceleration.
Force = mass x acceleration
Now;
Let us find the acceleration from the kinematics equations:
v² = u² + 2aS
v is the final velocity
u is the initial velocity
a is the acceleration
S is the distance
30² = 10² + (2 x a x 50)
900 = 100 + 100a
100a = 800
a = 8m/s²
Therefore;
Force = 700 x 8 = 5600N
French fries were on your car
Answer:
B) form a straight line with the Moon in the middle.
Explanation:
- For the occurrence of a solar eclipse the earth and the moon and the sun must be in a straight line and moon should be in center of the earth so that it completely blocks the rays of the sun and the shadow falls on earth and the sun appears to form a ring and thus the eclipse takes place.
<span>The correct answer for this question is this one:
"The wing tip is moving around a circle at a constant speed. And it says that the acceleration is centripetal. It moves a distance that is equal to the circumference of a circle, as </span>the wing makes a complete circle<span>. The radius of the circle is equal to one half of the wingspan.
</span>Circumference = 2 * π * 6.6 = π * 13.2
<span>To determine the velocity, divide this distance by 22 seconds. </span>
<span>v = π * 13.2 ÷ 22 </span>
<span>This is approximately 1.885 m/s. </span>
<span>Centripetal acceleration = (π * 13.2 ÷ 22)^2 ÷ 6.6 </span>
I'm assuming you mean arrows like these
In which case they are used to show the direction of the drift or movement around the Earth's surface at the boundaries of each plate.
