Question

pls solve this questions ,,with proper working​..plsssssssss heeeeelpppp meeee......need to pass up tomorrow assignment..ASAP

Answer 1

1). 114.29 km per hour

2). 93.24 km per hour

Explanation:

Question (1)

Umar drove his taxi in two parts;

1). Ipoh to Tapah

2). Tapah to Kuala Lumpur

Since, the formula to calculate the average speed =
`\frac{\text{Distance}}{\text{Time}}`

Total distance from Ipoh to Tapah = 60 km

Average speed to cover this distance = 100 km per h

Time taken to cover this distance =
`\frac{\text{Distance covered}}{\text{Speed}}`

=
`(60)/(100)`

= 0.6 hours

Total distance from Ipoh to Kuala Lumpur = 220 km per h

Average speed from Ipoh to Kuala Lumpur = 110 km per h

Time taken to cover the distance =
`(220)/(110)` = 2 hours

Distance from Tapah to Kuala lumpur = 220 - 60

= 160 km

Time taken to travel from Tapah to Kuala Lumpur = 2 - 0.6

= 1.4 hours

Average speed from Tapah to Kuala Lumpur =
`(160)/(1.4)`

= 114. 29 km per hour

Question (2).

Speed achieved by the leopard = 25.9 meter per sec.

Since, 25.9 meter =
`(25.9)/(1000)` km

= 0.0259 km

1 second =
`(1)/(3600)` hour

Therefore 25.9 meter per second =
`(0.0259)/((1)/(3600) )`

= 0.0259 × 3600

= 93.24 km per hour