Ateam of engineers has designed a new anti-collision device for cars. the device is intended to reduce the chance of collisions between cars. the engineers have decided to test the device on car models in laboratory conditions before testing it on real cars. which test would be most useful to decide if the device works as intended? measuring the amount of damage after a collision, with the device fitted comparing the performance of the device with that of other similar devices observing how the number of collisions varies with the speed of the cars comparing the frequency of collisions with and without the device