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re https/learningassistantalliance.org/moduleslasso/student/FMCE/index.php Force & Motion Survey Questions 27-29 refer to a coin that is tossed straight up into the air. After it is released it moves upward, reaches its highest point and falls back down again. Use one of the following choices (A through G) to indicate the acceleration of the coin during each of the stages of the coin's motion described below. Take up to be the positive direction. Answer choice J if you think that none is correct A. The acceleration is in the negative direction and constanm B. The acceleration is in the negative direction and increasing C. The acceleration is in the negative direction and decreasing D. The acceleration is zero. E. The acceleration is in the positive direction and constant F. The acceleration is in the positive direction and increasing G. The acceleration is in the positive direction and decreasing 27. The coin is moving upward after it is released. 28. The coin is at its highest point. 29. The coin is moving downward. Questions 30-34 refer to collisions between a car and trucks. For each description of a collision (30-34) below, choose the one answer Next Page Prevous Page1 2Explanation / Answer
Here ,
when the coin is tossed straight upwards
the force acting on the coin is weight of the coin
the weight acts in the downwards direction at all times
hence , the acceleration will be downwards and equal to constant
hence ,
27) when the coin is moving upwards
the acceleration is downwards and constant
the correct option is A)
28)
when coin is at the highest point
the acceleration is downwards and constant
the correct option is A)
29)
the coin is moving downwards
the acceleration is downwards and constant
the correct option is A)
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