The speed of a runner increased steadily during the first three seconds of a race. Her speed at half-second intervals is given in the table. Find lower and upper estimates for the distance that she traveled during these three seconds. ft (smaller value) ft (larger value)

Jennifer started running at a speed of 3 m/s.After a while, she increased her speed by 30%.Find Jennifer's speed after she increased from her original speed.Express your answer as a decimal.

Jennifer is running the 100.0 m dash at track. She accelerates at a rate of 0.88 m/s2 for thefirst 45 m and then maintains this speed for the remainder of the race. How long will it takeher to finish the race? (Answer: t= 10.1 s + 6.2 s=16.3 s)

Jamie started running at a speed of 2.8 m/s.After a while, she increased her speed by 50%.Find Jamie's speed after she increased from her original speed.

A person covers a certain distance with certain speed if he increases his speed by 15 km/hr. Then he will be 16 min. early. By how much time he will be late if he reduces his speed by 12 km/hr, if his initial speed is 60 km/hr?Options15 min25 min24 min20 min

A marathon runner crosses the start line of a race at a speed of 1 m/s and accelerates at a constantrate of 2 m/s2 for 2 seconds.Which graph shows the relationship between displacement from the start line and time aftercrossing the start line?2/28/2023, 2:58:42 PM