c)
a = dv/dt = 18 t i + 4 j
===
d)
F = ma = 1500 * ( 18 t i + 4 j) = 27000t i + 6000 j
====
e) T = F × r
T = (27000 t i + 6000 j) × ( 3 t^3 i + 2t^2 j)
T = (36000 t^3) k
=====
f)
L = m ( v × r)
L = 1500 ( 18 t^4 - 12 t^4) k
L = 9000 t^4 k
=======
comment before rate in case any doubt, will reply for sure.. goodluck
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