Question

PHYSICSSSSS HELPPPPPP

Answer 1

Step-by-step explanation:

1). Average speed of a skydiver =
`\frac{\text{Distance covered}}{\text{Time taken}}`

=
`(9)/(2.5)`

= 3.6 km per minute

2). Average speed of the butterfly =
`(30)/(14)`

=
`(15)/(7)`

=
`2(1)/(7)` meter per second

3). Average speed of the race car =
`(500)/(3)`

=
`166(2)/(3)` miles per hour

4).Average speed =
`\frac{\text{Distance traveled}}{\text{Time taken}}`

Distance traveled = Average speed × Time

= 85 (km per hour) × 3.5 (hours)

= 297.5 km