Answer:
C. 3m/s
Explanation:
Since we ignore air resistant, horizontally speaking, theres no force acting on the ball. According to Newton's 1st law of motion, when there's no force, the object will stays in the same velocity.
In this case after, the ball velocity would still be 3m/s
Answer:
B and D
Explanation:
I included the picture associated with the problem below:
Seeing as B and D are at the same level here, they posses the same amounts of kinetic energy. Another pair that would be correct, although it is not a choice, is A and E. This is because they too have the same kinetic energy (0J because they are stationary). Hope this helps! :)
Answer:
There isnt enough in your question to answer the question bro, like we need a picture or something bro.
Explanation:
Use v^2 - u^2 = 2as
Here, u = 20 m/s , a = -0.5 m/s^2 and v = 0
- 400 = -s ======> s = 400 m
Hope it helps, please mark me as brainliest and give me a good rating. Thank You!