Question

plz Q no 4 plz fast with explain

Answer 1

⏪⏪⏪HELLO MATE HERE IS UR ANSWER

✨✨GIVEN:
✅FORCE = 3X^2+2X-7


✔ DISPLACEMENT = X= 5m

✅✅here the part of interest is to differentiate the force value, i.e,
⏺⏺ 3X^2+2X-7===(1)

now to differentiate

differentiate it once to get value easily

⏹ on differentiating we will get

6X+ 2 ✅✅====(2)

now , put the value of x= 5m in both equation 1 and 2 and sum them

⏺ value of 1st equation on substituting 5 will be 78J

◀and the value of equation 2 on substituting x=5 will be 32

⏪⏪⏪hence sum them u will get

⏹ 78+32= 115 joules

hence the answer



important formula

⏺ v= u+at
⏺s= ut+1/2at^2
⏺v^2= u^2+2as

, these are the most important formulas , without which physics is of no use , so try to be perfect these , if u perfect these u will be the BRAINLIEST

⏩⏩⏩hope it helps u

be BRAINLY