(a). Find the average acceleration in the time interval t = 0 to t = 2:0s. (b). Determine the acceleration at t = 2s 4. An object is released from rest at a height h. during the final second of its fall, it traverses a distance of 40 m. Determine h/6marks? /5marks 5. The wall of a house, 7 m wide and 6 m high is made from 0.3m thick brick with k = 0.6W/mK. The surface temperature on the inside of the wall is 16°C and that on the outside is 6°C. Find the heat flux through the wall and the total heat through it. /5marks W =7 m L=03 m H = 6 m outside T= 6°C inside T₁ = 16°C