11/13/2022 0 Comments Average speed physics= 1/2 h, Speed for the second part of journey = v 2 = 60 Total distance travelled = 125/3 = 41.67 kmĪverage speed = Total disrtance travelled / Total time takenĪverage speed = (125/3)/(7/6) = 35.71 kmphĭistance travelled = 41,67 km and average speed = 35.71 kmphĪ car travels at a uniform speed of 30 kmph for 30 minutes and then at a uniform speed of 60 kmph for next 30 min. Kmph, time for first part of journey = t 2 = 40 min = 40/60 = = 1/2 h, Speed for the second part of journey = v 2 = 40 = 30 kmph, time for first part of journey = t 1 = 30 min = 30/60 Given: Speed for the first part of journey = v 1 Calculate the total distance travelled by car and its average speed. Total distance travelled = 100 m + 100 m = 200 mĪs the body is returning back to the same position.ĭisplacement = minimum distance between initial and finalĪverage speed = Total distance/ total time = 200/10 = 20 m/sĪs displacement is zero, velocity is also zeroĪ car travels at a uniform speed of 30 kmph for 30 minutes and then at a uniform speed of 40 kmph for the next 40 min. Journey + distance travelled in downward journey Total distance travelled = distance travelled in upward Given: Upward distance travelled = 100 m, time taken for upward Find the distance travelled, displacement, average speed and average velocity of the body. Given: Speed of car = v = 72 km/h = 72x 5/18 = 20 m/s, Timeįor uniform motion, Distance = speed x time = 20 x 1200 =Ī body rises vertically upward to a height of 100 m, in 5 seconds, then comes back at the same position after another 5 s. Find the distance travelled by it in 20 minutes Given: Speed of body = v = 20 m/s, Time taken = t = 10 sįor uniform motion, Distance = speed x time = 20 x 10 = 200ĭistance travelled by the body in 10 s is 200 mĪ car is travelling with a uniform speed of 72 kmph. Find the distance travelled by the body in 10 s. Given: Speed of car = v = 65 km/h, Time taken = t = 3 hoursįor uniform motion, Distance = speed x time = 65 x 3 = 195ĭistance between delhi and Agra is 195 kmĪ body travels at a uniform speed of 20 m/s. Time taken to cover 240 m, time = distance/speed = 240/60 =Īns: The speed of the train is 60 m/s and it will take 4 s to cover a distance of 240 mĪ car takes 3 hours to travel from Delhi to Agra with a uniform speed of 65 kmph. Given: Distance travelled by train = s = 120 m, Time taken = 2 sįind: Speed of train = v =? and time t =?įor uniform motion, speed = distance/time = 120/2 = 60 m/s Calculate the speed of the train and the time taken to cover a distance of 240m. What is its speed and velocity?Īns: The speed is 10 m/s and the velocity is 10m/s due eastĪ train moving with a uniform speed covers a distance of 120 m in 2 s. A train travels a distance of 100 m due east in 10 seconds.
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