Answer:
(i) v = 44 m/s
(ii) a = 72 m/s^2
Explanation:
You have the following equation for the potion of a car:
(i) The instantaneous velocity is the derivative of x in time:
for t = 1 is:
(ii) The instantaneous acceleration is the derivative of the velocity:
for t = 1
Answer:
mechanical energyis the sum of all potential and kinetic energy.hope it helps!
Answer:
Removing some of the books reduced the mass of the box, and less force was needed to push it across the floor.
2.4 secs I think
?????????????????????????
Elements with low specific heat values tends to absorb heat energy lesser which means it will heat up faster. Having low specific heat values means it can have rapid changes in temperature. Metals generally have a low specific heat capacity, that's why their temperature can change so quickly.
