- For Teachers
"That's dangerous, not only for the driver, but for everyone else on the road. The brake system is designed for a load of 21 tones. When the truck is eight or nine tones overloaded, the momentum doesn't let you stop unless you really stand on the brakes."
I would like to know if I could use “impulse” instead of ”momentum” in this sentence.
I also wonder if “momentum” is an informal word. In the negative case, which word should I use casually, please?
Momentum is the impetus of a moving body.It is the product of mass and velocity.
Impulse is the effect of momentum in a very short period of time .
So momentum is correct here.
Last edited by rj1948; 08-May-2008 at 08:45.
American spelling: ton(s)~R
British spelling: tonne(s)
RonBee :Yes - but you've won ground with 'program'. The only time we see 'programme' any more is referring to the flyer at a theatre performance. It's all 'TV programs' here now.