At what pair of angles for a projectile the ranges are equal?
Correct answer: B. 60, 30
- A. 20, 60
- B. 60, 30
- C. 40, 60
- D. 25, 55
Explanation
The range of a projectile depends on its initial velocity and launch angle. The formula to calculate the range (R) of a projectile is given by:R = (v^2 * sin(2θ)) / gFor angles 60 and 30 degrees, the ranges will be equal. This is because the sine of twice the angle is the same for 60 and 30 degrees. Therefore, the ranges will be equal for these angles.
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Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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