Question

30 kg hours then find: I. A car travels 210 km in 3 2 (a) how much time is required to cover 60 km with the same speed?​

Answer 1

Answer:

3086.4s or 51.44min

Explanation:

Distance=S=210km

1km=1000m

S=210×1000=210,000m

time=t= 3(1÷2)hrs

t={3×(1÷2)} ×60=180min (1hr=60min)

=180×60s (1min=60seconds)

=10800s

formula

t=S÷v

putting values

10800s= 210,000m÷v

v= 210,000m÷10800s

v=19.44m/s

Now

for S= 60km=60×1000= 60,000

speed (v) is same

v=19.44m/s

t=?

t=S÷v

putting values

t=60,000m÷19.44m/s

t=3086.4s

In minutes

t=3086.4÷60

t=51.44min