A Donkey Is Attached by a Rope to a Wooden $\circ$

question 45

Multiple Choice

A donkey is attached by a rope to a wooden cart at an angle of 23 ^$\circ$ to the horizontal.The tension in the rope is 210 N.If the cart is dragged horizontally along the floor with a constant speed of 6 km/h,calculate how much work the donkey does in 35 minutes.

• A)740 kJ
• B)290 kJ
• C)680 kJ
• D)11 kJ
• E)0.70 kJ

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Definitions:

P(x = a)

The probability of a random variable x taking on a specific value a.

P(x = a)

The probability that the random variable X is equal to some value a.

Continuous Random Variable

A type of random variable that can take an infinite number of possible values in a continuum or interval on the number line.

P(x > a)

Represents the probability of a random variable X taking a value greater than a specific number a.