Abike rider pedals with constant acceleration to reach a velocity of 7.8 m/s over a time of 4.2 s. during the period of acceleration, the bike's displacement is 19 m. what was the initial velocity of the bike?

To calculate the initial velocity of the bike, we use the following equation

.

or

Here, u is initial velocity, v is final velocity, t is the time and d is the distance covered by bike.

Given, , and .

Substituting these values in above equation, we get

.

Thus, the initial velocity of the bike is 1.2 m/s.

the answer is b, have negligible mass

in order to follow the instructions and complete the statements, i need to use data from table c of your student guide. can you think of a way to let me see your student guide for a while ? i can't answer the question without the data in table c.