Question

The velocity of an object changes from v1 10 icap + 4 j cap + 2 k camp to be 24 icap + 2 j cap + 3 k camp in 5 seconds find the magnitude of average acceleration

Answer 1

v1=110i^+4j^+2^

v2=24i^+2j^+3k^

average acceleration =v2-v1/t2-t1

v2-v1=(110i^+4j^+2^)-(24i^+2j^+3k^)=86i^+2j^-k^

t1=0 and t2=5

average acceleration=86i^+2j^-k^/5=17.2i^+0.4j^-0.2k^

magnitude=17.20