Suppose I’m a free fall lab experiment you find clear evidence of discrepancy be

Question

Suppose I’m a free fall lab experiment you find clear evidence of discrepancy between theory and experiment for g such that 9.8 m/s^2 is clearly larger. Than the results of the experiment what is the likely cause A) air resistance B) object already moving a labeled t=0 C) both a and b D)neither Projectile Motion Lab B.) The purpos of fist a.) use the data to confirm the equations of projectile motion. b.) measure the firing speed of the gun. c.) Both a &b; d.) Neither a nor b. 9.) Projectiles often miss the target in this lab. One reason for this is that our theory assumes the firing spee of the gun increases as the firing angle increases, when in fact it actually _as the firing angle a.) increases, decreases b.) decreases, increases c.) decreases, stays constant d.) stays constant, decreases e.) stays constant, increases 10.) An object that is launched on level ground at 0>45° has: flight time and, -forward velocity, compared to one launched at ?-45° a.) more, less b.) less, more c.) more, the same d.) less, the same e.) None of these. Force Table Lab 11.) The "equilibrant" vector is required to determine the resultant vector R in: a.) the graphical method of vector addition b.) the component method of vector addition c.) determining it experimentally d.) None of these.

Explanation / Answer

Suppose I’m a free fall lab experiment you find clear evidence of discrepancy between theory and experiment for g such that 9.8 m/s^2 is clearly larger. Than the results of the experiment what is the likely cause of the fact that air resistance was ignored in theoretical calculations which will lead to a larger value of final velcity. wen the final value of velocity is lower, lower value of acceleration is observed in the experiment

hence A) Air resistance

8. the purpose offirst firing the gun horizontall is to measure the firing speed of the gun

B)

9. projectiles often miss the target because theory asusmes that firing speed of the gun stays constant as he angle increases, when in fact the firing speed decreases as the angle increases

hence

d)

10. for theta > 45 deg

more flight time

less forward velocity as compared to theta = 45 deg

a)

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