Question

The position vector ￫r of a particle of mass m is given by the following equation
￫r (t) = ????t³ î + ???? t²ĵ, where ???? = 10/3 m s⁻³, ???? = 5 m s⁻² and m = 0.1 kg. At t = 1 s, which of the following
statement(s) is(are) true about the particle?
(A) The velocity ￫v is given by ￫v = (10î + 10ĵ) m s⁻¹
(B) The angular momentum ￫L with respect to the origin is given by ￫L = (5/3) kˆ N m s
(C) The force ￫F is given by ￫F = (î + 2ĵ)N
(D) The torque ￫???? with respect to the origin is given by ￫???? = -(20/ 3) kˆ N m

Answer 1

Explanation:

Hopefully Understandable ^-^.