Il Solve the word problems
1.Convert 54 km/hr into m/s.
2.Calculate Time-period of a simple pendulum if it takes 72 seconds to
complete 24 oscillations.(Time period of the pendulum Time taken/Number of
Oscillations)
3.A train is travelling at a speed of 100 km/hr. How long will it take to complete a
journey of 500 km without stopping in between?
4.Ramesh takes 15 minutes to reach market from his house on this cycle. If the
speed of his cycle is 4 mis.Calculate the distance between his house and
market
Answers
Answer:
1. 15 m/s
2. 3 s
3. 5 hr
4. 3.6 km
Step-by-step explanation:
1. Required speed = 54× 5/18 m/s
= 3 × 5 m/s
= 15 m/s
2. Required time period = 72/24 s
= 3 s
3. Required time taken = Distance/speed
= 500 km/ 100 km/hr
= 5 hr
4. Required distance = speed × time
= 4 m/s × 15 × 60s
= 60 × 60 m
= 3600 m = 3.6 km
Answer:
Answer:
1. 15 m/s
2. 3 s
3. 5 hr
4. 3.6 km
Step-by-step explanation:
1. Required speed = 54× 5/18 m/s
= 3 × 5 m/s
= 15 m/s
2. Required time period = 72/24 s
= 3 s
3. Required time taken = Distance/speed
= 500 km/ 100 km/hr
= 5 hr
4. Required distance = speed × time
= 4 m/s × 15 × 60s
= 60 × 60 m
= 3600 m = 3.6 km
Step-by-step explanation:
1. Required speed = 54× 5/18 m/s
= 3 × 5 m/s
= 15 m/s
2. Required time period = 72/24 s
= 3 s
3. Required time taken = Distance/speed
= 500 km/ 100 km/hr
= 5 hr
4. Required distance = speed × time
= 4 m/s × 15 × 60s
= 60 × 60 m
= 3600 m = 3.6 km