Part A Find the change in momentum of a 1300 k g car that increases its speed fr
ID: 2264434 • Letter: P
Question
Part A Find the change in momentum of a 1300kg car that increases its speed from 6.0m/s to 14.5m/s in a time of 16s while traveling in the same direction? Express your answer to two significant figures and include the appropriate units.Part B What minimum force, applied in the direction of motion, is needed to do this?
Express your answer to two significant figures and include the appropriate units. Part A Find the change in momentum of a 1300kg car that increases its speed from 6.0m/s to 14.5m/s in a time of 16s while traveling in the same direction? Express your answer to two significant figures and include the appropriate units.
Part B What minimum force, applied in the direction of motion, is needed to do this?
Express your answer to two significant figures and include the appropriate units. Part B What minimum force, applied in the direction of motion, is needed to do this?
Express your answer to two significant figures and include the appropriate units.
Explanation / Answer
a)
dp = m dv = 1300 * (14.5 - 6) = 11050 = 1.1 x 10^4 Kg.m/s
b)
F = dp/dt = 11050/16 = 6.9 * 10^2 N