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Hir
Subject: Physics
, asked on 11/11/17
36) Calculate the tensions T
1
, T
2
and T
3
in the three threads shown in the following figure. (All threads are massless) (g = 10 m/s
2
)
(
1
)
30
N
,
40
N
,
50
N
(
2
)
50
N
,
30
N
,
40
N
(
3
)
35
N
,
45
N
,
40
N
(
4
)
30
N
,
50
N
,
40
N
Answer
8
Dhiren Joshi
Subject: Physics
, asked on 22/4/18
Solve this :
23. The radius of smooth light pulley is 0.2 m. The mass of each block is 10 kg. Find the normal force per unit length of its length, the string applies the pulley.
(a) 500 N/m (b) 100 N/m
(c) 200 N/m (d) 250 N/m
Answer
1
Nirav
Subject: Physics
, asked on 15/7/17
5th no
A wedge of height 'h'is released from rest with a light particles P placed on it as shown.the wedge slides down an incline which makes an angle
θ
with horizontal.All the surface are smooth ,P will reach the surface of the surface of the incline in time.
(
a
)
2
h
g
sin
2
θ
(
b
)
2
h
g
sin
θ
cos
θ
(
c
)
2
h
g
tan
θ
(
d
)
2
h
g
cos
2
θ
Answer
5
Dhaval
Subject: Physics
, asked on 26/8/17
A fireman wants to slide down a rope. The rope can bear a tension 3/4th weight of the man. With what minimum acceleration should the fireman slide down?
Answer
2
Dhaval
Subject: Physics
, asked on 14/9/17
A fireman of mass 60kg slifes down a pole with a force of 600N. The coefficient of friction between the hands and the pole is 0.5, with what acceleration will the fireman slide down
Answer
1
Paree Mukherjee
Subject: Physics
, asked on 14/8/17
Can anyone give me solution please.?
73. Block A, with weight 3w,slides down an inclined plane
S of slope angle 37
°
at a constant speed while plank B,
with weight w,rests on top of A.The plank is attached
by a cord to the walt.(a) Draw a diagram of all the forces
acting on block A. (b) If the coefficient of kinetic
friction is the same between A and B and between S and
A,determine its value.
a
9
20
(
b
)
1
5
c
3
4
(
d
)
1
4
Answer
2
Nirav
Subject: Physics
, asked on 20/7/17
5 th no.
Ans is A)
Challenge
Answer
4
Jayesh
Subject: Physics
, asked on 7/10/17
Please solve this.
Answer
3
Pushan
Subject: Physics
, asked on 11/11/18
Answer fast please
Answer
4
Jayakeerthana
Subject: Physics
, asked on 22/9/17
Q. A 10 g bullet moving at 200 m/s stops after penetrating 5 cm of wooden plank. The average force exerted on the bullet will be
1) 2000 N 2) -2000 N
3) 4000 N 4) -4000 N
Q. A ball mass 50 g is dropped from a height of 20 m . A boy on the ground hits ball vertically upwards with a bat with an average force of 200 N. so that it attains a vertical height of 45 m. The time for which the ball remains in contact with the bat is [Take g= 10 m/
s
2
]
1. 1/20th of a second 2. 1/40th of a second
3. 1/80th of a second 4. 1/120th of a second
Answer
7
Dhiren Joshi
Subject: Physics
, asked on 21/4/18
Solve for 21 to 24 ASAP. Please :)
Answer
2
Riva
Subject: Physics
, asked on 17/8/18
calculate the force acting on aparticle at any instant t
Answer
2
Fenil Mansara
Subject: Physics
, asked on 6/2/19
What is right answer?
Answer
2
Roy
Subject: Physics
, asked on 18/11/18
what is method of solveit
Answer
2
Shilpi Shrivastava
Subject: Physics
, asked on 5/11/19
A block at rest slide down a smooth inclined plane which makes an angle 60 degree with the vertical and it reaches the ground in T1 set another block is dropped vertically from the same point and reaches the ground in T2 second then the ratio of T1 ratio T2 is...
Answer
1
1
2
3
Next
What are you looking for?
23. The radius of smooth light pulley is 0.2 m. The mass of each block is 10 kg. Find the normal force per unit length of its length, the string applies the pulley.
(a) 500 N/m (b) 100 N/m
(c) 200 N/m (d) 250 N/m
A wedge of height 'h'is released from rest with a light particles P placed on it as shown.the wedge slides down an incline which makes an angle with horizontal.All the surface are smooth ,P will reach the surface of the surface of the incline in time.
73. Block A, with weight 3w,slides down an inclined plane
S of slope angle 37 at a constant speed while plank B,
with weight w,rests on top of A.The plank is attached
by a cord to the walt.(a) Draw a diagram of all the forces
acting on block A. (b) If the coefficient of kinetic
friction is the same between A and B and between S and
A,determine its value.
Ans is A)
Challenge
1) 2000 N 2) -2000 N
3) 4000 N 4) -4000 N
Q. A ball mass 50 g is dropped from a height of 20 m . A boy on the ground hits ball vertically upwards with a bat with an average force of 200 N. so that it attains a vertical height of 45 m. The time for which the ball remains in contact with the bat is [Take g= 10 m/]
1. 1/20th of a second 2. 1/40th of a second
3. 1/80th of a second 4. 1/120th of a second