Question

An antelope moving with constant acceleration covers the distance 65.0 m between two points in time 7.50 s. Its speed as it passes the second point is 15.1 m/s.

Answer 1

the An antelope moving with constant acceleration covers distance 650 m between two points in time 7.50 8. Its speed as it second passes point is → 15.1 m/s the Here, S u t > - distance 65 m time = 7.5 $ final velocity vf = 15.1 m/s initial velocity Vio acceleration , Equations of motion, 1 VA Vi + at at2 s - vit + Ź o forom equation = 15.1 - Vi + 7.5 a from equation ④ 6 5.0 (v) x 7-5) + xax (7.5)? 2 (TV

from equation we can write, 1.91 Vi + 7.5 a a 151-7.5 write, we can woorf equation 2 65.0 7. 5 Vit 2 da (75) 10 7.5 vi + 65 v 7.5 at ê x7.5] [15.1 65 = (7.5 X 15.1) -(7,5 2 x 7-5) = 7.5 6 [ose U ㅋ 65 113.25 28.125 a a 28.125 => (65 -113.25) 1.715 m/s2 a a Putting the value of in equation , 15.1 -(7.5 X 1.715) Ni 2.2375 m/s > U

Answer o The speed of the partiele at the fiorst point is, Vi - V = 2:23 7 5 mis 2. The acceleration is a 1.715 m/s2