A square picture with sides of 32 inches is to be mounted on a square mat with sides of 52 inches. Find the area of the mat that will remain uncovered by the picture.
4 answers
A motor car is uniformly retarded and brought to rest form a speed of 108km/h in 15 seconds.find its retardation
mat: 52^2 - 32^2 = ?
car: (108km/hr)/(15s) = (30m/s)/(15s) = 2 m/s^2
car: (108km/hr)/(15s) = (30m/s)/(15s) = 2 m/s^2
Vo = 108km/h = 108,000m/3600s. = 30 m/s.
V = Vo + a*t = 0.
30 + a*15 = 0,
a = -2 m/s^2.
V = Vo + a*t = 0.
30 + a*15 = 0,
a = -2 m/s^2.
2 in^2