09. A car of mass 1000 kg moves at a constant speed of 20m/sec along a horizental road where frictional force is 200 N. The power developed by the engine is.​

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

it doesn't. it was imagined up in the middle ages.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

the answer is c. the lower legs are levers, and the knees are fulcrums. the ankles hold the loads.