info@clay6.com
+91-9566306857
(9am to 6pm)
logo

Ask Questions, Get Answers

X
Want help in doing your homework? We will solve it for you. Click to know more.
 

A trolley of mass 360 kg lying on a horizontal friction less surface. A man of mass 40 kg runs with uniform speed on the trolley a distance of 2 m in $0.5 \;s$. What is the velocity of the trolley relative to the earth?

\[\begin {array} {1 1} (a)\;0.8\;m/s & \quad (b)\;0.4\;m/s \\ (c)\;1.6\;m/s & \quad  (d)\;2.2\; m/s \end {array}\]

1 Answer

Need homework help? Click here.
Velocity of man (m) relative to trolley
$V_r= \frac{2}{0.5}$
$\quad=4 m/s$
Velocity of trolley (M) in the opposite direction $=V$
$MV=m(V_{r}-V)$
$V= \large\frac{m V_{rel}}{m+M}$
$\quad= \large\frac{40 \times 4}{400}$
$\quad=0.4 m/s$
answered Nov 21, 2013 by meena.p
edited Jun 17, 2014 by lmohan717
 

Related questions

...