Car moving at speed 'u', applied brakes with constant retardation If speed of car reduces to - Physics - Laws Of Motion

Question

Car moving at speed 'u', applied brakes with constant
retardation If speed of car reduces to ?u/2 in 30 Minuttes , then
total distance travelled by car before coming to rest is

Shreya · Answer

V=U+at therefore U/2=U+30/60*A therrefore A=-U now apply s=ut +
1/2 a t^2 therefore S=u/2+u/8=5u/8 then applu V^2-u^2=2AS ND again
by considering u as U/2 and a to be equal to -A AND V=0 FIND THIS
DISTANCE DEN ADD THE PREVIOUS DISTANCE CALCULATED ND THIS DISTANCE
:)

Car moving at speed 'u', applied brakes with constant retardation. If speed of car reduces to ?u/2 in 30 Minuttes , then total distance travelled by car before coming to rest is