Question

an object is thrown up with a speed of 30m/s. what will be its height at time =3 second​

Answer 1

Answer:

45

Explanation:

s=ut+1/2at^2

s=30×3-1/2×10×3²=45

if you want

S3rd second then

S3rd = u+a/2 (2n-1)=30+10/2(2×3-1)=55

Answer 2

Answer : The height to which the object rises is 45 m.