You are hired to plan stunts for the next James Bond movie. In one of the film's opening scenes, Bond is going to evade some goons by stepping off a building and landing in the bed of a moving garbage truck. From the top of the building, he will fall 15 meters straight down before landing in the truck, which will be driving by with a constant speed of 22 m/s. Part A. How fast will the stuntman be moving the moment he hits the truck?Part B. How far from the building should the truck be when you give the stuntman the signal to drop off the ledge?

Explanation:

height of the building h = 15 m

initial vertical velocity u = 0

v² = u² + 2 g h

u = 0 , final velocity after falling height h

h = 15

v² = 2 x 9.8 x 15

v = 17.14 m /s

. Time of fall be t

h = 1/2 g t²

15 = 1/2 x 9.8 x t²

t = 1.749 s

This time will be required for truck to come under the building .

speed = distance / time

distance = speed x time

= 22 x 1.749

38.5 m

Truck should be at a distance of 38.5 m . when the stuntman starts falling .

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000