A student travels a distance of 45 m from the ground to the top of a long staircase that rises at an angle of 36' with respect to the horizontal. How high is the student from the ground when they reach the top
of the staircase? Give your answer in metres, correct to the nearest metre.

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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the components of a vector are the parts of the vectors that are to each other.

b perpendicular