Let $\mathbf { r } ( t ) = \langle 5 t , \sin 3 t , \cos 3 t \rangle$ . Show that the velocity vector is perpendicular to the acceleration vector.

Name: Let $\mathbf { r } ( t ) = \langle 5 t , \sin 3 t , \cos 3 t \rangle$ . Show that the velocity vector is perpendicular to the acceleration vector.
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The Answer of Let $\mathbf { r } ( t ) = \langle 5 t , \sin 3 t , \cos 3 t \rangle$ . Show that the velocity vector is perpendicular to the acceleration vector.

Let r(t)=⟨5t,sin⁡3t,cos⁡3t⟩\mathbf { r } ( t ) = \langle 5 t , \sin 3 t , \cos 3 t \rangler(t)=⟨5t,sin3t,cos3t⟩

Let $\mathbf { r } ( t ) = \langle 5 t , \sin 3 t , \cos 3 t \rangle$