A train is moving 35 m/s to the east. It speeds up to 42 m/s east over the

course of 40 seconds. What was the train's acceleration?

O A. 0.175 m/s2 west

O B. 5.71 m/s2 east

O C. 5.71 m/s2 west

O D. 0.175 m/s2 east

Question

Physics

Peyton Gallagher

3 April, 18:55

A train is moving 35 m/s to the east. It speeds up to 42 m/s east over the

course of 40 seconds. What was the train's acceleration?

O A. 0.175 m/s2 west

O B. 5.71 m/s2 east

O C. 5.71 m/s2 west

O D. 0.175 m/s2 east

+1

Answers (1)

Know the Answer?

Mackenzie Liu · Answer 1

0.175 m/s2 east

Explanation:

when train is moving on a constant acceleration we can use motion equation to solve this,

V = U + at

v = final velocity

u = initial velocity

a = acceleration

t = time taken

42 = 35 + a*40

a = 0.175 m/s²

A train is moving 35 m/s to the east. It speeds up to 42 m/s east over thecourse of 40 seconds. What was the train's acceleration?O A. 0.175 m/s2 westO B. 5.71 m/s2 eastO C. 5.71 m/s2 westO D. 0.175 m/s2 east

A train is moving 35 m/s to the east. It speeds up to 42 m/s east over the

course of 40 seconds. What was the train's acceleration?

O A. 0.175 m/s2 west

O B. 5.71 m/s2 east

O C. 5.71 m/s2 west

O D. 0.175 m/s2 east