Adragster and driver together have mass891.3 kg. the dragster, starting from rest, attains a speed of 25.2 m/s in 0.62 s. find the average acceleration of the drag-ster during this time interval.

40.645 m/s²

Explanation:

Acceleration: This can be defined as the rate of change of velocity. The S.I unit of acceleration is m/s². Mathematically,

a = (v-u)/t Equation 1

Where a = acceleration, v = velocity, u = initial velocity, t = time.

Given: v = 25.2 m/s, u = 0 m/s, t = 0.62 s.

Substituting into equation 1

a = (25.2-0)/0.62

a = 25.2/0.62

a = 40.645 m/s²

Hence the average acceleration of the drag-star = 40.645 m/s²

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

magnified images possible images can be real = projected onto a screen