This elementary problem begins

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 R bps. 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, d_prop,  in terms of m and s.

b. Determine the transmission time of the packet, d_trans, in terms of L and R.

c.Ignoring processing and queuing delays, obtain an expression for the end-to-end delay.

d. Suppose Host a begins to transmit the packet at time t=0. At time t=d_trans where is the last bit of the packet?
e.Suppose d_pron is greater than d_trans. At time t=d_trans, where is the first bit of the packet?
f. Suppose d_prop is less than d_trans At time t=d_trans, where is the first bit of the packet?
g. Suppose s=2.5.10⁸, L= 100 bits, and R=28 kbps. Find the distance m so that equals d_trans.