Question

the minute hand of a watch is 1.5cm long. how far does its tip move in 40 minute? (π=3.14) ​

Answer 1

Answer:

check step by step explanation

Step-by-step explanation:

wherever the watch goes, the needle goes. if u wear the watch to a market, the needle goes there, but the needle doesn't get out of the casing or escape out of the 12 hours marked on the watch. note: this answer is to be taken for an ideal situation where the watch is perfectly intact and the needle hasn't broken out

Answer 2

Step-by-step explanation:

Solution: In 60 minutes the minute hand of a watch completes one revolution. Therefore in 40 minutes the minute hand turns through 2/3 of a revolution. Therefore θ = 2 × 360°/3or 4π/3radian. Hence the required distance travelled is given byl = r θ = 1.5 × 4π/3 cm = 2π cm = 2 × 3.14 cm = 6.28 cm.