This is because the more mass will have a greater force of gravity, therefore, the larger mass applied will make the parachute fall faster than the smaller mass applied as because they take longer to reach a terminal velocity, due to a larger force of gravity acting on them. ... Also, the 30cm ruler will be used to measure equal lengths of four pieces of string. ... When recording the results we will write the time in seconds to 1 decimal place as it will be easier to compare the times. ... For example, in my results the highest value for 20g was 1.4 whereas, on this data it is 2.6 which is ...

• Word Count: 2141
• Approx Pages: 9
• Has Bibliography
• Grade Level: High School

If the payback period is equal to or less than a predetermined target value, the investment project is acceptable. ... In theory, this threshold is set equal to the organisation's cost of capital or discount rate. ... In practice, to allow for risk and inherent approximation in the IRR calculations, it may be set at a rate greater than the cost of capital. ... For costs of capital greater than the IRR of the incremental project, the two methods give the same advice: accept project A, since it is preferable in terms of both NPV and IRR. ... PBP tells you how long it will take to recoup you...

• Word Count: 3890
• Approx Pages: 16
• Has Bibliography
• Grade Level: High School