According to Newton’s third law of motion, if two objects collide, the forces they impart on each other are of equal magnitude to what was propelling them in the first place. In layman’s terms, this means that when a car stops moving – in a crash, for example – there’s quite a bit of excess energy that needs to be redistributed somewhere – especially when it comes to larger vehicles.
It’s no wonder then that so many people are concerned about how our streets are rapidly being populated by two-tonne-plus electric SUVs, with some even touching three tonnes. Only a few decades ago such heft was reserved for the most expensive of luxury cars or commercial vehicles.
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