Answer to Question #216986 in Physics for ran li

Question

1.A 60.0-kg student runs at a constant velocity up a flight of stairs. If the vertical distance of the stairs is 3.2 m, the work done against gravity is ___x10³ J (Give your answer with the correct number of sig digs and do not include units).

Use the information below to answer the following 4 questions.

A 10.0-kg object is accelerated horizontally from rest to a velocity of 11.0 m/s in 5.00 s by a horizontal force.

1.The acceleration of the object is ___m/s². (Give your answer with 3 sig digs and do not include units).

2.The horizontal force given to the object is ___N. (Give your answer with 3 sig digs and do not include units).

3.The distance travelled by the object is ___m. (Give your answer with 3 sig digs and do not include units).

4.The work done on the object is ___J. (Give your answer with 3 sig digs and do not include units).

Answer 1

1.A 60.0-kg student runs at a constant velocity up a flight of stairs. If the vertical distance of the stairs is 3.2 m, the work done against gravity is 1.88 x 10³ J (Give your answer with the correct number of sig digs and do not include units).

1.The acceleration of the object is 2.20 m/s².

2.The horizontal force given to the object is 22.0 N.

3.The distance travelled by the object is 27.5 m.

4.The work done on the object is 605 J.