A body travels from A to B at 40m/s and from B to A at 60m/s. Calculat – McqOptions

MCQOPTIONS

1.	A body travels from A to B at 40m/s and from B to A at 60m/s. Calculate the average speed.
A.	0
B.	48m/s
C.	240m/s
D.	3.5m/s
Answer» C. 240m/s

Discussion

No Comment Found

Related MCQs

A driver takes 0.20 s to apply the brakes after he sees a need for it. This is called the reaction time of the driver. If he is driving at a speed of 54km/h and the brakes cause a deceleration of 6.0m/s2, find the distance travelled by the car after he sees the need to put the brakes.
A jet plane starts from rest with an acceleration of 3m/s2 and makes a run for 35s before taking off. What is the minimum length of the runway?
What is the acceleration of a bus approaching a bus stop?
A train is under a journey of several hundred kilometers. How can it be regarded?
A_JET_PLANE_STARTS_FROM_REST_WITH_AN_ACCELERATION_OF_3M/S<SUP>2</SUP>_AND_MAKES_A_RUN_FOR_35S_BEFORE_TAKING_OFF._WHAT_IS_THE_MINIMUM_LENGTH_OF_THE_RUNWAY??$
A_driver_takes_0.20_s_to_apply_the_brakes_after_he_sees_a_need_for_it._This_is_called_the_reaction_time_of_the_driver._If_he_is_driving_at_a_speed_of_54km/h_and_the_brakes_cause_a_deceleration_of_6.0m/s<sup>2</sup>,_find_the_distance_travelled_by_the_car_after_he_sees_the_need_to_put_the_brakes.$
<p>What is the acceleration of a bus approaching a bus stop?</p>
On a 60km track travels the first 30km with a uniform speed of 30km/h. How fast must the train travel the next 30km so as to average 40km.h for the entire trip?
A body travels from A to B at 40m/s and from B to A at 60m/s. Calculate the average speed.
Displacement is a scalar quantity.