3 physics questions

Anonymous
timer Asked: Dec 19th, 2018
account_balance_wallet $20

Question description

1. A ball is thrown horizontally from a platform so that the initial height of the ball is 6.0m above the level ground below. The ball lands 24m from it’s original horiztional location. Find how fast the ball was thrown. Show all work


2. A car is driven at constant velocity along a level highway. Indicate the value of the net force and list all the main forces acting on the car to produce the net force. Clearly explain what produces or exerts each of the contact forces acting on the car and explain which forces are balanced.



3. Summarize two observations that are contrary to the predictions based on Newton’s laws but that confirm Einstein’s explanation of gravity. Indicate how the predictions based on Newton’s theory differ from Einstein’s.


please explain in a way a regular high school student can understand. thank you :)

Tutor Answer

MariaTheBest
School: University of Virginia

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Anonymous
Goes above and beyond expectations !

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