a body covers 200cm in first 2 sec , and 220 cm in next 4 sec . what is the velocity of the body at the end of 7th second...plz its urgent...plz help me...
Answers & Comments
siv2
I solved it almost i didnt have space for full calculation S7 = 0.115×7 - 0.5×0.085×49 = 0.4375 m = 437.5 cm this is total displacment in 7 sec so in 7th sec it travelled = s7-s6 =437.5-420 = 17.5 cm
Ans is 17.5 cm check my bio and follow i can help more
Answers & Comments
S7 = 0.115×7 - 0.5×0.085×49 = 0.4375 m = 437.5 cm
this is total displacment in 7 sec
so in 7th sec it travelled = s7-s6 =437.5-420 = 17.5 cm
Ans is 17.5 cm
check my bio and follow i can help more