The work done on the couch is given by the formula: Work = Force x Distance. In this case, the work done is 400N x 4m = 1600 J (joules).
The net force is 200N to the left (400N - 200N = 200N).
The mechanical advantage of the jack is calculated by dividing the load force (5000N) by the effort force (400N). In this case, the mechanical advantage of the jack is 12.5, meaning that for every 1 unit of effort applied, the jack is able to lift 12.5 units of load.
The formula for tension is T = mg +/- ma. Thie tension on the rope is still only 400 N, regardless if one person is pulling or two people are pulling.
To find the net force, we need to consider the forces in the left and right direction separately. The total force to the left is 175N + 225N = 400N (to the left). The total force to the right is 234N + 75N + 45N = 354N (to the right). Therefore, the net force is 400N - 354N = 46N to the left.
The net force on the barrel is 600 N downward (1000 N - 400 N). This net force causes the barrel to accelerate downward as per Newton's second law, F = ma, where F is the net force, m is the mass, and a is the acceleration.
The net force is 200N to the left (400N - 200N = 200N).
The mechanical advantage of the jack is calculated by dividing the load force (5000N) by the effort force (400N). In this case, the mechanical advantage of the jack is 12.5, meaning that for every 1 unit of effort applied, the jack is able to lift 12.5 units of load.
800N/2m^2 = 400N/m^2
The formula for tension is T = mg +/- ma. Thie tension on the rope is still only 400 N, regardless if one person is pulling or two people are pulling.
To find the net force, we need to consider the forces in the left and right direction separately. The total force to the left is 175N + 225N = 400N (to the left). The total force to the right is 234N + 75N + 45N = 354N (to the right). Therefore, the net force is 400N - 354N = 46N to the left.
100-400n USD
The net force on the barrel is 600 N downward (1000 N - 400 N). This net force causes the barrel to accelerate downward as per Newton's second law, F = ma, where F is the net force, m is the mass, and a is the acceleration.
The total vertical height the boy climbs is 50 steps * 10cm = 500cm = 5m. The work done by the boy is the force (mg) * distance (5m) = 40kg * 9.8 m/s^2 * 5m = 1960 J. Power is work done divided by time, so the power developed by the boy is 1960 J / 5 sec = 392 watts.
A newton is a kg *m/ s^2. Acceleration is in m/s^2. Thus divide the force in Newtons by kilograms and you will get an acceleration value.In this case: 20 N / 100 kg = 0.2 m/ s^2
Total downward force = 300 + 250 + 300 = 850N Total reaction (upward) force must be 850N = scale left (400N) + scale right. So scale right must be 450N.
Power is calculated using the formula: Power = Work / Time. The work done in lifting the weight can be calculated as Work = Force × Distance, which is 400 N × 0.5 m = 200 Joules. Therefore, the power of the weightlifter is 200 Joules / 2 seconds = 100 Watts.
One scale is reading 200N and the other is reading 400N.