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A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. Find
A. displacement of the car.
B. distance travelled by the car.
C. average speed of the c?
A. displacement of the car.
B. distance travelled by the car.
C. average speed of the c?
Most Upvoted Answer
A car travels from stop A to stop B with a speed of 30 km/h and then r...
Problem
A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. Find:
A. Displacement of the car.
B. Distance travelled by the car.
C. Average speed of the car?
Solution
A. Displacement of the car
Displacement is the shortest distance between the initial and final positions of an object. Since the car returns back to its initial position, the displacement of the car is zero.
B. Distance travelled by the car
Distance is the total length of the path travelled by an object.
Distance travelled from A to B = speed x time = 30 km/h x t
Distance travelled from B to A = speed x time = 50 km/h x t
Total distance travelled = distance from A to B + distance from B to A = 30t + 50t = 80t
C. Average speed of the car
Average speed is the total distance travelled by an object divided by the total time taken.
Total distance travelled by the car = 80t
Total time taken = time taken to travel from A to B + time taken to travel from B to A = t + t = 2t
Average speed of the car = total distance travelled / total time taken = 80t / 2t = 40 km/h
Therefore, the answers are:
A. Displacement of the car = 0
B. Distance travelled by the car = 80t
C. Average speed of the car = 40 km/h
Community Answer
A car travels from stop A to stop B with a speed of 30 km/h and then r...
Total distance travelled by car = D = D1(A to B) + D2(B to A) And D1=D2=D/2 ......
#A := As car starts from A and return to same point that is A.... Displacement is Zero
# C:=> Average speed
=total distance /total time
= D1+ D2 / t1+ t2
= D1+ D2 / (D1 /V1+ D2/V2)
=D / {D/2 *(1/V1 + 1/V2)}
= 2*(V1*V2) /V1+V2
= 2 * 30 * 50 /50+30
= 3000 / 80
= 300/8
=37.5 km/hr ...is the answer...
#A := As car starts from A and return to same point that is A.... Displacement is Zero
# C:=> Average speed
=total distance /total time
= D1+ D2 / t1+ t2
= D1+ D2 / (D1 /V1+ D2/V2)
=D / {D/2 *(1/V1 + 1/V2)}
= 2*(V1*V2) /V1+V2
= 2 * 30 * 50 /50+30
= 3000 / 80
= 300/8
=37.5 km/hr ...is the answer...
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A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. FindA. displacement of the car.B. distance travelled by the car.C. average speed of the c?
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A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. FindA. displacement of the car.B. distance travelled by the car.C. average speed of the c? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. FindA. displacement of the car.B. distance travelled by the car.C. average speed of the c? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. FindA. displacement of the car.B. distance travelled by the car.C. average speed of the c?.
A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. FindA. displacement of the car.B. distance travelled by the car.C. average speed of the c? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. FindA. displacement of the car.B. distance travelled by the car.C. average speed of the c? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A car travels from stop A to stop B with a speed of 30 km/h and then returns back to A with a speed of 50 km/h. FindA. displacement of the car.B. distance travelled by the car.C. average speed of the c?.
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