Question

If ax = t² + t + 4 m/s² and ay = 8t m/s² then at t = 1 s, the angle θ made by acceleration with x-axis is​

Answer 1

Answer:

53°

Explanation:

let net acceleration be a

ax= acosø= t²+t+4

ay=asinø= 8t m/s

a= sqrt( ax²+ay²)

at t=1

ax= 6m/s²

ay= 8m/s²

a= sqrt(6²+8²)= 10m/s²

angle made with x axis means x component of a

which is acosø

acosø= 6

10cosø=6

cosø= 6/10

cosø= 3/5= 53°