A 1. 5-kg playground ball is moving with a velocity of 3. 0 m/s directed 30° below the horizontal just before it strikes a horizontal surface. The ball leaves this surface 0. 50 s later with a velocity of 2. 0 m/s directed 60° above the horizontal. What is the magnitude of the average resultant force on the ball?.

the answer is:

in a biology class, the teacher started explaining a new lesson about the dna structure. personally, i found this lecture hard to understand. so i decided to use my critical thinking skills to be able to understand it. i analysed the different ideas, and broke them down into smaller parts to assimilate each. then i started evaluation and tried to link what i am learning with real life experiences so that i can make sure that i know how everything i am learning relates. finally, i started questioning by researching more what i learned and asking more questions that can me through my learning process. reflecting on the information meant that i should review it. all this me greatly understand what i previously found hard to understand.

hope it !

answer:

well i am certain this question isn't for serious matters.

explanation: