A Projectile Is Shot at an Angle of 45º to the Horizontal

question 41

Multiple Choice

A projectile is shot at an angle of 45º to the horizontal near the surface of Earth but in the absence of air resistance.When it reaches the highest point of its trajectory,its speed is 150 m/s.In a second trial with the same projectile,the initial speed is the same but the angle is now 37º with the horizontal.At its highest point in this trajectory,the speed of the projectile would be

• A)150 m/s (sin 45º/sin 36º)
• B)150 m/s (cos 37º/cos 45º)
• C)150 m/s (sin 37º/sin 45º)
• D)150 m/s (37/45)
• E)None of these is correct.

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