The velocity of a falling object is a linear function of the time t it has been falling. If v = 20 when
t = 0 and v = 53 when t = 11, express v as a function of t.

• v = 20+3t
  
  Since velocity, v is a linear function of time, t
  
  v = x + yt---(1)
  
  when v = 20 , t = 0
  substituting these values
  
  20 = x + y*0
  x = 20
  
  when v = 53, t=11
  substituting the values in (1)
  
  53 = 20 + y*11
  y = 3
  
  So,
  v = 20+3t
  
• 10 years agoHelpfull: Yes(0) No(0)
• v = 3t + 20
  because when v=20, t=0
  and v=53 t=11
  let us consider two point form of straight line
  (0,20),(11,53) be two coordinates.
  v-20 = (33/11)(t-0)
  v = 3t+20
  
• 10 years agoHelpfull: Yes(0) No(0)