Ms. Parris reads a book for 45 minutes every night before she goes to bed. In order for this to work, she needs to use a reading lamp. Unlike most lamps, her lamp is powered by a battery instead of an electrical socket. When the
lamp is turned on, the light is bright enough for Ms. Parris to read her book before going to sleep. What energy does the light bulb use

Initial velocity,  u = 4.9 m/sfinal velocity = v m/sinitial height,  h₁ =  245 m    final height, h₂ = 0a = -9.8  m/s²time taken = t secondss = ut + 0.5at²⇒  (h₂-h₁) = ut + 0.5at²⇒  0-245 = 4.9t + 0.5×(-9.8)×t²⇒ -245 = 4.9t - 4.9t²⇒ 4.9t² -4.9t -245 =0solving it, we get   t = 7.59sv  = u +  at = 4.9 -9.8×7.59 = 4.9 - 74.38 = -69.48 m/svelocity is  69.48 m/s downward

B.air resistancehoped i   can i get brainliest

Because its not moving at that time hope u understand