The force needed to lift a 400 g mass would be equal to the mass multiplied by the acceleration due to gravity. Using the formula F = m * g, where F is the force, m is the mass (in kg), and g is the acceleration due to gravity (approximately 9.81 m/s^2), the force required to lift the 400 g mass would be approximately 3.92 N.
To lift a 45 kg mass, you would need to apply a force equal to the gravitational force acting on the mass, which is approximately 441 Newtons (45 kg * 9.81 m/s^2). This force would need to be greater than the weight of the mass to overcome gravity and lift the object upward.
The force needed to lift a weight of 200N would be 200N. This is because the force needed to lift an object against gravity is equal to the weight of the object itself.
The force needed to lift a 500 g mass would be equal to its weight, which is given by mass x acceleration due to gravity. Using Earth's gravity (9.81 m/s^2), the force required would be approximately 4.905 N.
The amount of effort needed to lift a 1-kg mass using a lever depends on the length of the lever arm and the position of the fulcrum. By applying a downward force at one end of the lever, you can lift the mass on the other end with less effort than directly lifting it due to the mechanical advantage provided by the lever.
To lift 200 pounds of weight, you would need to apply a force equal to the weight being lifted, which in this case is 200 pounds. This is because the force needed to lift an object against gravity is equal to its weight.
To lift a 45 kg mass, you would need to apply a force equal to the gravitational force acting on the mass, which is approximately 441 Newtons (45 kg * 9.81 m/s^2). This force would need to be greater than the weight of the mass to overcome gravity and lift the object upward.
The force needed to lift a weight of 200N would be 200N. This is because the force needed to lift an object against gravity is equal to the weight of the object itself.
The force needed to lift a 500 g mass would be equal to its weight, which is given by mass x acceleration due to gravity. Using Earth's gravity (9.81 m/s^2), the force required would be approximately 4.905 N.
The same force as the weight of the helicopter and its crew and cargo.
The amount of effort needed to lift a 1-kg mass using a lever depends on the length of the lever arm and the position of the fulcrum. By applying a downward force at one end of the lever, you can lift the mass on the other end with less effort than directly lifting it due to the mechanical advantage provided by the lever.
To lift 200 pounds of weight, you would need to apply a force equal to the weight being lifted, which in this case is 200 pounds. This is because the force needed to lift an object against gravity is equal to its weight.
The work done to lift a mass is given by the formula: work = force x distance. In this case, the force needed to lift the 500kg mass against gravity is its weight, which is 500kg x 9.81m/s^2 = 4905 N. The work done would be 4905 N x 20m = 98100 Joules.
The force needed to lift 750 kg of water against the force of gravity is equal to the weight of the water, which is the product of the mass and acceleration due to gravity. The force would be 750 kg * 9.81 m/s^2 ≈ 7357.5 N.
Because it's five times heavier of course !
To calculate the force needed to lift 50 kilograms onto a shelf 3 meters high, you would use the formula: Force = mass x gravity x height. Assuming a gravitational acceleration of 9.81 m/s^2, the force required would be approximately 1471.5 Newtons.
If the pulley is fixed (hanging from the ceiling), and the rope passes over it, then 100 lbs of force is required. If the rope is fixed to the ceiling and passes under the pulley (which is fixed to the load), then 50 lbs of force is required.
Using a single fixed pulley will not change the amount of effort needed to lift a load. You will need to exert a force equal to the weight of the load, in this case 10 newtons, to lift it. The fixed pulley only changes the direction of the force needed, not the amount of force required.