(a) The net force upward force of the helicopter is -35,880 N.
(b) The weight of the helicopter is 45,080 N.
(c) The lift-force exerted by the air on the propellers is 9,200 N.
The given parameters:
- <em>mass of the helicopter, m = 4600 kg</em>
- <em>acceleration of the helicopter, a = 2 m/s²</em>
The net force upward force of the helicopter is calculated as follows;
The weight of the helicopter is calculated as follows;
The lift-force exerted by the air on the propellers is calculated as follows;
Learn more about Newton's 2nd Law here: brainly.com/question/3999427
Answer:
Maybe B, D, F
Explanation:
It wasn’t letting me submit so it is in the link
Answer:2.103 m/s
Explanation:
Given
mass of sports car
mass of SUV
Suppose u is the velocity if sports car before collision
Conserving momentum we get
After collision the combined mass drag 2.8 m and finally stops
From work energy theorem work done by friction is equal to change in kinetic energy of the combined mass system
where
Initial velocity
They signed the <em>Halibut</em> Treaty of 1937.
Answer:
RIGHT
Explanation:
given,
mass of box = 250 kg
speed of the truck = 25 m/s
static friction µs = 0.7
g = 10 m/s²
to find direction of friction on the box
truck is moving in left direction and suddenly in front of truck a car stops then the driver hit the brake hard so at that moment the box on the trailer will have the tendency to move left so to oppose its movement friction force will be on RIGHT