Flag Mechanics> A ship of mass 3 × 107 kg initially at re...
question mark

A ship of mass 3 × 107 kg initially at rest, is pulled by a force of 5 × 104 N through a distance of 3m. Assuming that the resistance due to water is negligible, the speed of the ship isa) 1.5 m/sec.b) 60 m/sec.c)0.1 m/sec.d) 5 m/sec.

satendra , 10 Years ago
Grade 12th pass
anser 2 Answers
bharat bajaj

Last Activity: 10 Years ago

A = F/m = 5 × 104/ 3x107

From newton third law
V^2 - u^2 = 2as
V^2 = 2 x 5 x 3 x 104/3x107
It comes out to be near 3 m/ sec
There is no such option. The answer is correct. Please check the values again

Thanks
Bharat Bajaj
Askiitians faculty

Nilesh

Last Activity: 8 Years ago

F=ma
5*104 = (3*107) a
a = (5/3)*10-3
 
Now, By newton’s third law of motion,
v2 – u2 =2as
v2 – 02 = (2)*(5/3)*(10-3)(3)
v2 = 10-2
v = 0.1 m/s

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...