Answer:
V = 1.41 m /s
Explanation:
Movement in both wood board and boy is created by internal forces . No horizontal external force acts on them . So conservation of momentum will apply on both of them for movement in horizontal direction.
Mass of wood board x velocity = mass of boy x velocity
58.1 x V = 48.3 x 1.69
V = 1.41 m /s
Nothing works if Switch-3 is open.
-- None
-- A, E, F, G
-- None
-- A, B, E, F, G
-- A, C, D, E, F, G (everything except B)
Moment about D=0
or,T1*6a-5w*3a-9w*2a=0
T2+T1=5w+9w
Cold weather as in snow, and sleet. Hethared weather as in warm sun acting as a proper radiant agains the surface of biofuse, and standard quadrullants as in rain.
