Question

2. Two cars start from the same point with speeds 39 km/h and 51 km/h. Find the distance between them after 15 min, if they travel in: (a) the same direction (b) the opposite direction 22 nondo Determine: 1​

Answer 1

Answer:

a. 3km

b. 22.5 km

Step-by-step explanation:

a)

t=15min=15/60 hr= 1/4 hr

distance travelled by A=39*(1/4)=39/4 km

distance travelled by B=51*(1/4)=51/4 km

so,

difference =51/4 - 39/4=12/4=3 km

b)

if travelled in opposite directions then distance will be added

so,

difference = 51/4 + 39/4= 90/4 = 22.5 km