Which is an example of an object with a momentum of zero?
an empty canoe sitting on the bank of a river****
a car rolling down a hill
a swimmer diving off the starting block
a puck sliding across the top of an air hockey table
since p = mv, and m is not zero, then v must be zero
So, yes, A is the correct choice.
Conversation of Momentum QC
1. Newton's first law of motion
2. Momentum is conserved
3. intertia
4. the motion of an object
5. an empty canoe sitting unmoving on the bank of a river
NO NAME IS 100
To determine which object has a momentum of zero, we need to understand the concept of momentum. The momentum of an object is defined as the product of its mass and velocity. Mathematically, momentum (p) is calculated as p = m * v, where m is the mass of the object and v is its velocity.
Now, let's examine the examples given:
1. Empty canoe sitting on the bank of a river: In this case, the canoe is not moving. Therefore, its velocity (v) is zero. Even if the canoe has mass (m), since the velocity is zero, the momentum (p) of the canoe will also be zero.
2. Car rolling down a hill: Since the car is rolling, it has both mass (m) and velocity (v). Therefore, the car will have a non-zero momentum.
3. Swimmer diving off the starting block: Similar to the car rolling down a hill, the swimmer has both mass (m) and velocity (v) while diving. Hence, the swimmer will have a non-zero momentum.
4. Puck sliding across the top of an air hockey table: Again, the puck has both mass (m) and velocity (v) while sliding across the table. Thus, the puck will have a non-zero momentum.
Considering these explanations, the correct answer is an empty canoe sitting on the bank of a river, since it has no movement (zero velocity) and therefore, its momentum is also zero.