yrelhan4
  • yrelhan4
A truck is moving with a uniform velocity of 10 m/s.A leak occurs in the water tank of the truck at the rate of 2 kg/s.What is the speed of the truck after 50 seconds if the mass of the truck was 100 kg and mass of water in the tank initially was 100 kg?
Physics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
can you tell me what would be the mass of the truck after 5o seconds??
yrelhan4
  • yrelhan4
100kgs.. all of sand will leak. right?
yrelhan4
  • yrelhan4
water i am sorry..

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

eSpeX
  • eSpeX
Yes, you are losing 2kg/s so in 50 seconds you will lose 2kg/sec * 50sec = 100kg
anonymous
  • anonymous
I dont no if it can be solved because there is two variable P(momentum) and v(velocity) in the equation
eSpeX
  • eSpeX
Well, since the problem gives the truck as moving with a uniform velocity, you know that it is not accelerating, meaning that it is not speeding up or slowing down. So after 50 seconds its momentum has changed but by definition its velocity has not.
anonymous
  • anonymous
so the velocity is the same 10m/s but the momentum will be 1000 Ns
eSpeX
  • eSpeX
That is how I read the question, yes.
yrelhan4
  • yrelhan4
but the asnwer given is 15m/s ..
yrelhan4
  • yrelhan4
@eSpex also the velcoty cannot be 10m/s. since no external force is acting on the system conservation of momentum has to stand. i think the question is wrongly drafted.
anonymous
  • anonymous
NO.. THE QUESTION is right.. use conservation of momentum!! initial mass = 200kg and initial velocity = 10m/s hence initial momentum = 2000kgm/s final mass = 100kg and final velocity = v .. but final momentum = 2000kgm/s itself hence 100v = 2000 or v = 20m/s!
anonymous
  • anonymous
but when the water leaks the leaking water also has some momentum.. so in that case i really dunno how to solve the problem !
yrelhan4
  • yrelhan4
@mashy will the system accelerate?
anonymous
  • anonymous
it depends..i mean for example when the water leaks.. if i said that since the water has its inertia.. after it is seperated from the truck it continues to move along with the truck at same speed.. then the velocity wouldn't change!!.. and truck wouldn't accelerate
yrelhan4
  • yrelhan4
the word uniform velocity in the sumin the first line is before the leak occurs, right?

Looking for something else?

Not the answer you are looking for? Search for more explanations.