請問以下幾題既點計...請詳細例出steps同原因...
Q1:
a motor car traveling at 14m/s on dry flat surface should be able to stop in14 m.assuming the deceleration to be uniform,calculate:
(A)its valur and the correspoding baking time
(B)the distance traveled during the first second after the application of the barkes.
Q2:the velocity of a body increases uniformly from 4.5m/s to 11.5 m/s while it travels 100m,calculate:
(A)the acceleration
(B)the time taken
Q3: A car ,starting from rest , accelerates uniformly at 2 m/s for 10s.,calculate:
(A)the distance travelled
(B)the final speed