Question

the distance travelled in 't ' seconds by an object starting with a speed of 'u' meters/seconds and moving along a straight line with speed increasing at the rate of a metre /second every second is given by ut +half at square metres. an object moving in this manner travels 14metres in 2 second and 78metres in 6second
a)with what speed did it start?
b)at what ratevdoes its speed change? ​

Answer 1

Answer:

speed=4m/s and rate of change in speed=3m/s^2

Step-by-step explanation:

for speed put the value of a in equation 1

u will get the answer