Author Question: Using dimensional analysis, which one of the following equations is dimensionally correct? ( a ... (Read 190 times)

sarasara · **on:** Jul 27, 2018

Using dimensional analysis, which one of the following equations is dimensionally correct? ( a m/s2, v m/s, x m , t s)

A) x = v/t
B) v = 2ax
C) t2 = x/a
D) x2 = 2av
E) x = a t

Question 2

An antitank weapon fires a 3.0 kg rocket which acquires a speed of 50. m/s after traveling 90. cm down a launching tube. Assuming the rocket was accelerated uniformly, what force acted on it?

A) 4.2 kN
B) 3.6 kN
C) 2.8 kN
D) 2.0 kN
E) 5.8 kN