6. A peigon of mass 0.45kg is flying with a kinetic energy of 58J. It's speed is...
11m/s
16m/s
8.0m/s
22m/s
7. A football is kicked at speed of 12m/s at an angle of 35 degrees to the horizontal. The horizontal component of its velocity, in m/s, is given by
12cos35
12sin35
12/cos35
12/sin35
8. A free falling object has a speed of 5.0m/s. After falling a further 20m its speed will be...
45m/s
20m/s
25m/s
15m/s
9. the acceleration of free fall on a paticular planet is 8.0m/s*s. An object is dropped from a height and hits the ground after 1.5s. From what height was it dropped?
11m
12m
9.0m
6.0m
10. which of the following is not a SI base quantity?
