Question

plz ans this que guys...

Answer 1

v = (2ti + 4j ) m/s
differentiating v with respect to t ,
dv/dt = 2i
=> a = 2i ...
so, force = F = ma = 2 x 2 = 4i N
now , impulse = I = F x ∆t ... where ∆t = 2-0 = 2s
=> I = 4 x 2 = 8i kg-m/s .... (Answer)