How many watts does it take to lift 1kg?
10 Watts
What force is needed to accelerate a 2 kg mass at 1m sec?
A newton is defined as the amount of force that it takes to accelerate one kilogram (1 kg) of mass one meter per second squared (1 m/s2).
How do you calculate force components?
In order to calculate the magnitude and direction of a resultant force or to calculate the value of one force component or another, we can use the law of sines and the law of cosines….The forces and angles are as follows:
- F1 = 2.91 N, α1 = 0°
- F2 = 2.67 N, α2 = 60°
- F3 = 2.47 N, α3 = 150°
- F4 = 2.23 N, α4 = 270°
Is net force zero when acceleration is constant?
Explanation: The relationship between force and acceleration is . Since the crate has a constant velocity, it has no acceleration. If there is zero acceleration, that means there is no net force on the object, or .
Which force is used during swimming?
Gravitational force
What forces slow you down when swimming?
Friction in Swimming: When you are swimming you are almost always at battle with friction. Friction is part of the drag that catches on to you when you are swimming. As well as friction is the water resistance that is trying to slow you down when you are swimming.
Why is swimming so hard?
The resistance of water makes it more physically demanding on your muscles adding more strain on your body. Imagine biking or running with a parachute behind you. Air also has resistance but it is significantly less than that of water. At sea level, air is 784 times less dense than water.
What are the 10 safety tips for swimming?
How can I stay safe when swimming?
- Look for and read the signs. Read the signs posted in a swimming area and follow the safety information.
- Walk, do not run.
- Be careful getting in and out of the pool.
- Look before you leap or dive in.
- Stay within your abilities.
- Never swim alone.
- Play carefully.
- Do not drink alcohol.