Question

a man moves on a straight path his Travels Total distance l he travels half of his journey with speed 10 metre per second the remaining part of the journey was covered by him with speed 20 metre per second for the half remaining time and with velocity 40 metre per second for the other half remaining of time the average speed is​

Answer 1

Answer:

a man moves on a straight path his Travels Total distance l he travels half of his journey with speed 10 metre per second the remaining part of the journey was covered by him with speed 20 metre per second for the half remaining time and with velocity 40 metre per second for the other half remaining of time the average speed is