x(2) = 30(2) = 60 m
y(2) = ½(-9.8)2² = -19.6 m
x(4) = 30(4) = 120 m
y(4) = ½(-9.8)4² = -78.4 m
x(6) = 30(6) = 180 m
y(6) = ½(-9.8)6² = -176.4 m
x(8) = 30(8) = 240 m
y(8) = ½(-9.8)8² = -313.6 m
x(10) = 30(10) = 300 m
y(10) = ½(-9.8)10² = -490 m
Answer: 1925 joules
Explanation:
weight of man = 550 N
height climbed = 3.5m
Work = ?
Since, work is done when the man pulled his weight over the height; work is expressed as the product of weight and height climbed
i.e Workdone = 550N x 3.5m
= 1925 joules
Thus, the man did a work of 1925 joules while climbing
Answer:
Linear momentum is a property of objects which are changing their position with respect to a reference point.
Angular momentum is a property of objects which are changing the angle of their position vector with respect to a reference point.
Customers are willing to pay what they think something is worth and don't really care about your costs. If your costs push prices above their perceived value, they simply won't buy. If the perceived value is much higher than your costs, they'll happily pay a price that gives you a huge margin. One of the best examples of this is in retail clothing.
The student has no real facts, or data that states that people who eat white chocolate are happier. If the student wants to make his hypothesis true then he needs to do a test, to see if white chocolate makes people happier. :)
