hi! tysm for your vids they’re so helpful!! just one q, on q2 why is the displacement and acceleration different on part b in comparison to part a? (i.e. part a acceleration we worked out but part b is -9.8) thank you!!
hello sir, for the first question, you got 2 answers for part b) so I thought that you had to find the time that it took the ball to reach 40m then afterwards, you will know that the time it took the ball to reach 33.6m would be less than that of the time it took to reach 40m. For this reason I thought the answer would be 1.714..s.
hi! tysm for your vids they’re so helpful!! just one q, on q2 why is the displacement and acceleration different on part b in comparison to part a? (i.e. part a acceleration we worked out but part b is -9.8) thank you!!
a bit late to say but he made a mistake and corrected it back to 6
wait but i thought cuz in b it becomes a free moving particle so we use the -9.8?? before it's not a free. moving particle
hello sir, for the first question, you got 2 answers for part b) so I thought that you had to find the time that it took the ball to reach 40m then afterwards, you will know that the time it took the ball to reach 33.6m would be less than that of the time it took to reach 40m. For this reason I thought the answer would be 1.714..s.
13:02 I thought for part b s is given as 27 in the question?
Hey on the last question part b why can't we use v=u+at
it gives a negative value and speed cannot be negative
Life saver Ty
Not a problem! Thanks for watching and good luck with any tests/exams :)
@@AJMaths thanks I had my topic test today on suvat and vertical motion Qs and literally everything the vid helped