A body falling freely on the moon the acceleration due to gravity there is 1.7 m/s2. a. its displacement at t = 3s
b. the time for it to reach a speed of 25 m/s
c. the time required for it to fall 300 m
d. its speed after falling 70 m

a) 7.65 m

b) 14.71s

C) 15.43 m/s

Explanation:

a) s = ut + 0.5at²

s= ?

u = 0

t = 3s

a = 1.7 m/s²

s = 0 + 0.5 × 1.7 × 3²

s = 7.65 m

b) v = u + at

v = 25m/s

u = 0 m/s

a = 1.7 m/s ²

t = ?

v=at

t = v / a

t = 25 / 1.7

t = 14.71s

c) v² = u² + 2as

s = 70m

a = 1.7m/s²

u = 0 m/s

v = ?

v² =  2as

v = √238

v = 15.43 m/s

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