Case Study Based- 4
100m RACE A stopwatch was used to find the time that it took a group of students to run 100 m.

How many students finished the race within 1 minute?
(i)18
(ii)37
(iii)31
(iv)8

Case Study Based- 4 100m RACE A stopwatch was used to find the time that it took a group of students to run 100 m. Estimate the mean time taken by a student to finish the race. (i)54 (ii)63 (iii)43 (iv)50

Case Study Based- 4 100m RACE A stopwatch was used to find the time that it took a group of students to run 100 m. What will be the upper limit of the modal class?

Case Study Based- 4 100m RACE A stopwatch was used to find the time that it took a group of students to run 100 m. The sum of lower limits of median class and modal class is

Case Study Based- 4 100m RACE A stopwatch was used to find the time that it took a group of students to run 100 m. The sum of lower limits of median class and modal class is (i)60 (ii)100 (iii)80 (iv)140

Case Study Based- 4 100m RACE A stopwatch was used to find the time that it took a group of students to run 100 m. The construction of cumulative frequency table is useful in determining the

A dice is thrown 100 times and the outcomes are noted as given below.When a dice is thrown at random, what is the probability of getting aQ(i) 3 (ii) 6 (iii) 4 (iv) 1

A colth having an area of 165 m^(2) is shapped into the form of a conical tent of radius 5 m. (i) How many students can sit in the tent, if a student on an average occupies (5)/(7)m^(2) on the ground ? (ii) Find the volume of the cone.

In a 100 m race, Ajay runs at the speed of 4 km/h. Ajay gives Brijesh a start of 4 m and still beats him by15 s. Find the speed of Briiesh.

A student is running at her top speed of 5.0 m s^(-1) , to catch a bus, which is stopped at the bus stop. When the student is still 40.0m from the bus, it starts to pull away, moving with a constant acceleration of 0.2 m s^(-2) . a For how much time and what distance does the student have to run at 5.0 m s^(-1) before she overtakes the bus? b. When she reached the bus, how fast was the bus travelling? c. Sketch an x-t graph for bothe the student and the bus. d. Teh equations uou used in part (a)to find the time have a second solution, corresponding to a later time for which the student and the bus are again at thesame place if they continue their specified motions. Explain the significance of this second solution. How fast is the bus travelling at this point? e. If the student s top speed is 3.5 m s^(-1), will she catch the bus? f. What is the minimum speed the student must have to just catch up with the bus?For what time and what distance dies she have to run in that case?