Answer:
The correct answer is b. The acceleration of the truck will be much smaller due to its larger mass.
Explanation:
When the bumblebee collides with the truck, the force exerted on the car is equal and opposite to the force exerted on the bumblebee (Newton's third law). However, the truck's larger mass means it will experience a smaller acceleration due to this force, according to Newton's second law (F = ma).
The bumblebees with its much smaller mass, will experience a much larger acceleration due to the same force. So, the truck's acceleration will be much smaller than the bumblebee's acceleration.
Here's a rough estimate of the difference in acceleration, assuming a typical truck mass (around 2,000 kg) and a bumblebee mass (around 0.1 g or 0.0001 kg):
Truck acceleration ≈ 0.00005 m/s²
Bumblebee acceleration ≈ 500 m/s²