GR0877 Problem 1
PROBLEM STATEMENT: This problem is still being typed.
SOLUTION: (B) Once released, the ball experiences only the gravitational force (in this problem we ignore friction). Since the gravitational force has no horizontal component, the ball is moving in a straight line when viewed from above. Thus one should eliminate all but choices (B) and (D). The car is moving to the right, while the ball is thrown perpendicularly to this direction, so the initial velocity of the ball is directed towards southeast and preserves this direction in the future due to the absence of horizontal forces able to change this direction (Newton’s 2nd law). Choice (B).
Found a typo? Comment!
Jump to the problem
Want to get a full PDF with solutions? Read THIS.
The comments appending particular solutions are due to the respective users. Educational Testing Service, ETS, the ETS logo, Graduate Record Examinations, and GRE are registered trademarks of Educational Testing Service. The examination questions are © 2008 by ETS.