A pulley system has an input force of 2.5 N and an output force of 10 N. What is the mechanical advantage of this system?

Option B. 4

Explanation:

From the question given above, the following data were obtained:

Input force = 2.5 N

Output force = 10 N

Mechanical advantage (MA) =?

Mechanical advantage (MA) is simply defined as the ratio of the output force to the input force. Mathematically, it can be expressed as:

Mechanical advantage = Output : Input

MA = Output / Input

With the above formula, we can obtain the mechanical advantage of the pulley system as follow:

Input force = 2.5 N

Output force = 10 N

Mechanical advantage (MA) =?

MA = Output / Input

MA = 10/2.5

MA = 4

Thus, the mechanical advantage of the pulley system is 4.

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.