Answer: 780kgm/s²
Step-by-step explanation:
Given the following :
Mass of Polar bear = 120kg
Acceleration (a) = 6.5m/s²
Strength of force :
Force = mass × acceleration
Strength of force = 120kg × 6.5m/s²
Strength of force = 780kgm/s²
Hence, the strength of the force is 780kgm/s² towards the left (or negative)