An inclined plane, which slopes at 37 o, is used to raise a 10kg object to a height of 4m. If the efficiency of this machine is 80%. The amount of the load force will be _____Question 5Answera.118Nb.108 Nc.100Nd.98N
Question
An inclined plane, which slopes at 37 o, is used to raise a 10kg object to a height of 4m. If the efficiency of this machine is 80%. The amount of the load force will be _____Question 5Answera.118Nb.108 Nc.100Nd.98N
Solution 1
The load force, also known as the weight of the object, can be calculated using the formula:
Weight = mass * gravity
Where:
- The mass of the object is 10 kg
- The acceleration due to gravity is approximately 9.8 m/s^2
Here's a step-by-step calculation:
- Multiply the mass of the object by the acceleration due to gravity to find the weight: 10 kg * 9.8 m/s^2 = 98 N.
So, the load force or the weight of the object is 98 N.
Therefore, the answer is d. 98N.
Note: The efficiency of the machine and the angle of the inclined plane are not needed to calculate the load force. These factors would be more relevant if we were asked to calculate the effort force required to move the object up the inclined plane.
Solution 2
The statement is False. Here's a step-by-step explanation:
-
Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system.
-
The ideal mechanical advantage (IMA) is the mechanical advantage of a machine without considering real-world factors like friction and machine flexibility.
-
The actual mechanical advantage (AMA) is the mechanical advantage that is calculated using the actual values for output force and input force. This takes into account real-world factors like friction and machine flexibility.
-
In an ideal world (without friction and machine flexibility), the IMA and AMA would be the same. However, in the real world, because of these factors, the AMA is usually less than the IMA.
So, the answer is a. False.
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