sierravick123owr441
01.02.2021 •
Physics
A car traveling 35 km/hr accelerates to a speed of 45 km/hr in 0.25 hr . What is its acceleration
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Ответ:
let M be the mass of brick
let m be the mass of the pebble
.5M(3)^2 =KE
.5m(5)^2= KE
.5M9 = .5m25
9M = 25m
(9/25)M = m