Two projectiles "P" and "Q" are thrown with the same speed up at angles of 40o and 50o with the horizontal. Range of "P" will be:
Correct answer: A. Equal to that of Q
- A. Equal to that of Q
- B. Less than that of Q
- C. Greater than that of Q
- D. 3/7 times that of Q
Explanation
Projectiles launched at complementary angles (angles that sum to 90o) have equal ranges when launched with the same initial speed. Given that projectiles P and Q are launched at angles of 40o and 50o respectively, their angles are complementary (40o + 50o = 90o). Therefore, the range of P is equal to the range of Q.
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About Force and Motion
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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