In a region of space there is a uniform magnetic field pointing in the positive z direction. In what direction should a negative
1 answer:
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Answer:
The linear acceleration of the car is 2.86m/s².
Explanation:
First of all, we have that the linear acceleration of the car and the tires is the same, because it moves ahead without disassembling itself. So, we only have to calculate the linear acceleration of the tires.
Next, it is known that the linear and angular acceleration are related by the formula:
Finally, we plug in the given values in order to calculate the acceleration:
It means that the linear acceleration of the car is 2.86m/s².
Answer:
The ball experiences the greater momentum change
Explanation:
The momentum change of each object is given by:
where
m is the mass of the object
v is the final velocity
u is the initial velocity
Both objects have same mass m and same initial velocity u. So we have:
- For the ball, the final velocity is
Since it bounces back (so, opposite direction --> negative sign) with same speed (so, the magnitude of the final velocity is still u). So the change in momentum is
- For the clay, the final velocity is
since it sticks to the wall. So, the change in momentum is
So we see that the greater momentum change (in magnitude) is experienced by the ball.