Question

1.A car at rest moves at a speed of 2m/s. What is the car's initial velocity?
a. 2m/s
b. 1m/s
c. 0m/s
d. 3m/s

2.A ball was dropped from a building with a speed of 1m/s. What is the acceleration of the ball due to gravity? *
a. 1m/s
b. 1m/s2
c. 9.8m/s2
d. 9.8m/s

3.Which has greater momentum, an airplane at rest or a rolling ball? *

a. an airplane at rest
b. the bigger one
c. rolling ball
d. both have the same momentum

Answer 1

Answer:

1.c option

2.b option

3.c. option

Answer 2

Answer:

Answer 1) 0m/s because before attaining that speed it was at rest.

Answer 2) 9.8m/s2

Answer 3) A rolling ball because momentum

is velocity into mass. so for an airplane at rest it's velocity is zero and when we multiply zero with something it's value is zero.

Hope it helps!!