Calculating Velocity and Direction at Height of 120m

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SUMMARY

The discussion focuses on calculating the velocity and direction of a particle projected with an initial velocity of 146 m/s at an elevation of 35 degrees, specifically at a height of 120 meters. The calculated velocity at this height is 137.72 m/s, while the correct direction of motion is determined to be 29.72 degrees from the horizontal. This indicates the angle at which the particle is moving as it ascends to the specified height.

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A particle is projected with a velocity of 146m/s at an elevation of 35degree.
max height= 357.8, t=17.1s horizontal distance= 2041.8m

the question is find the velocity and direction of motion at a height of 120m
i got v= 137.72, but what is the meaning of the direction of motion at a height of 120m, the correct answer is 29.72degree

thank you
 
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It means at what angle the particle is moving. 29.72 degrees presumably means 29.72 degrees from the horizontal.
 

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