5. This elementary problem begins to explore propagation delay and transmission delay, two central concepts in data networking. Consider two hosts, A and B, connected by a single link of rate Rbps. Suppose that the two hosts are separated by m meters, and suppose the propagation speed along the link is s meters/sec. Host A is to send a packet of size L bits to Host B a Express the propagation delay, dnp in terms of m and s b. Determine the transmission time of the packet, drans in terms of L c. Ignoring processing and queuing delays, obtain an expression for the end- d. Suppose Host A begins to transmit the packet at time-0. At timem e. Suppose dop is greater than dans At timedrans, Where is the first bit of f. Suppose dyop is less than dirans At timedirans where is the first bit of g. Suppose s-2.0 . 10ng, L = 120, and R= 50,000. Find the distance m so that abrop equals trans. and R. to-end delay. where is the last bit of the packet? the packet?" the packet