CLASS 10 SCIENCE
TOP 40 PHYSICS NUMERICALS WITH
FULL SOLUTIONS
Q1. A car increases its speed from 5 m/s to 25
m/s in 4 s. Find acceleration
and distance travelled.
Solution:
Given: u = 5 m/s, v = 25 m/s, t = 4 s
Acceleration: a = (v-u)/t
= (25-5)/4
= 5 m/s²
Distance: s = ut +½at²
= 5×4 + ½×5×16
= 20 + 40
= 60 m
,Q2. A train starts from rest and attains 30 m/s
in 10 s. Find acceleration and distance.
Solution:
Given:
u=0,
v=30 m/s,
t=10 s
a=30/10
=3 m/s²
To find: s=?
s=½at²
=½×3×100
=150 m
, Q3. A body moves with velocity 20 m/s for 5 s.
Find distance travelled.
Solution:
Given 20 m/s
t=5 s
To find: s=?
s=vt
=20×5
=100 m
TOP 40 PHYSICS NUMERICALS WITH
FULL SOLUTIONS
Q1. A car increases its speed from 5 m/s to 25
m/s in 4 s. Find acceleration
and distance travelled.
Solution:
Given: u = 5 m/s, v = 25 m/s, t = 4 s
Acceleration: a = (v-u)/t
= (25-5)/4
= 5 m/s²
Distance: s = ut +½at²
= 5×4 + ½×5×16
= 20 + 40
= 60 m
,Q2. A train starts from rest and attains 30 m/s
in 10 s. Find acceleration and distance.
Solution:
Given:
u=0,
v=30 m/s,
t=10 s
a=30/10
=3 m/s²
To find: s=?
s=½at²
=½×3×100
=150 m
, Q3. A body moves with velocity 20 m/s for 5 s.
Find distance travelled.
Solution:
Given 20 m/s
t=5 s
To find: s=?
s=vt
=20×5
=100 m
