To solve this problem we will apply the concepts related to the conservation of momentum. By definition we know that the initial moment must be equivalent to the final moment of the two objects therefore
Here,
Mass of each object
Initial velocity of each object
= Final velocity of each object
Since the initial velocity relative to the metal tank is at rest, that velocity will be zero. And considering that in the end, the speed of the two bodies is the same, the equation would become
Rearranging to find the velocity,
Replacing we have that,
Therefore the velocity of the shark immediately after it swallows the tank is 
10 mph i jus got it right on the test
"<span>The geomagnetic north is similar to the south pole of a magnet" is the statement among the following statements given in the question that correctly describes the Earth's magnetic field. The correct option among all the options that are given in the question is the second option. I hope the answer helps you.</span>
Answer:
Option (b) will be correct answer for accelerating the car
Explanation:
For accelerating the car we have to speed up the car
In option (b) it is given that stepping on the gas pedal to speed up the car so it is correct answer
In option (c) it is given that pressing the pedal to slow down the car it is a case of deceleration so it is a incorrect statement.
In option (d) it is given that speed is constant at curved path so acceleration will be zero because if there is no change in velocity then acceleration will be zero
