Mary and Debra stand on a snow-covered roof. They both throw snowballs with the same initial speed, but in different directions. Mary throws her snowball downward, at 30° below the horizontal; Debra throws her snowball upward, at 30°. Neglect air friction. When the snowballs reach the ground below, O Mary's snowball never hits the ground since it is thrown downwards. O Debra's snowball never hits the ground since it is thrown upwards. O Mary's snowball will have a higher speed than Debra's. O Both snowballs will hit the ground with the same speed. O Debra's snowball will have a higher speed than Mary's.

Mary and Debra stand on a snow-covered roof. They both throw snowballs with the same initial speed, but in different directions. Mary throws her snowball downward, at 30° below the horizontal; Debra throws her snowball upward, at 30°. Neglect air friction. When the snowballs reach the ground below, O Mary's snowball never hits the ground since it is thrown downwards. O Debra's snowball never hits the ground since it is thrown upwards. O Mary's snowball will have a higher speed than Debra's. O Both snowballs will hit the ground with the same speed. O Debra's snowball will have a higher speed than Mary's.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

Question

Mary and Debra stand on a snow-covered roof. They both throw snowballs with the same initial
speed, but in different directions. Mary throws her snowball downward, at 30° below the horizontal;
Debra throws her snowball upward, at 30°. Neglect air friction.
When the snowballs reach the ground below,
O Mary's snowball never hits the ground since it is thrown downwards.
Debra's snowball never hits the ground since it is thrown upwards.
Mary's snowball will have a higher speed than Debra's.
Both snowballs will hit the ground with the same speed.
Debra's snowball will have a higher speed than Mary's.

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