The function
 h
 defined by
 h(t) = (49 + 4. 9t)(10 – t)
 models the height, in meters, of an object
 t
 seconds after it is dropped from a helicopter. 
 1. Find or approximate the time when the object hits the ground. Explain or show your
 reasoning
 2. From what height is the object dropped? Explain or show your reasoning.