A7 kg object is subjected to two forces (in newton):
F, = 20 î +30ſ and } =8î - 5j
The magnitude of resulting acceleration inms-2 will be
Answers
Answered by
0
Answer:
m=7kg
F
1
=20
i
^
+30
k
^
F
2
=8
i
^
−5
j
^
The net force is equal to the sum of two force,
F
=
F
1
+
F
2
F
=20
i
^
+30
j
^
+8
i
^
−5
j
^
=28
i
^
+25
j
^
Magnitude, ∣
F
∣=
(28)
2
+(25)
2
=35N
Force, F=ma
a=
m
F
acceleration, a=
7
37.5
=5m/s
2
.
The acceleration is 5m/s
2
.
The correct option is A.
Explanation:
Similar questions